Protect Your PC From WinPatrol And Avast! Anti-Virus Software

If you are tired of paying through your nose for security suites that are expensive, RAM-hungry and requires new subscription fees every year, there are plenty of free and tested anti-virus and anti-spyware tools in the web that do the same, if not better, job at protecting your PC as compared to paid versions. Besides well-known free security software like AVG, Spybot and Ad-Aware, here are two more free security tools that protects your PC while saving you money at the same time :

1. WinPatrol
Voted Tool of The Month by PCWorld for June 2007, WinPatrol's Scotty the Watch Dog monitors and alerts you whenever an unwelcome program tries to add itself to the set of applications that start up automatically whenever Windows boots. It detects, blocks and allows you to remove spyware and malware that make changes to your registry without your permission and helps to keep your system tray free of clutter.
The intuitive program comes with a cookie remover and through the Startup Programs function, provides a detailed list of each program that your PC launches at system startup. A smart feature, The Delayed Start, lets you delay the launch of non-essential programs for up to an hour after the system boots, enabling Windows to load faster. WinPatrol increases your PC speed and system performance, and by letting you know what programs are and should be running at all times, puts control of your computer back into your own hands.

2. Avast! Anti-Virus SoftwareA complete anti-virus package, Avast! Anti-Virus Home Edition is free for home users and has everything you need in an anti-virus tool. Providing real-time protection against nasty viruses and malware, Avast! also comes with an e-mail scanner for detecting web-mail borne viruses and through the P2P Shield, protects against virus attacks spread through peer-to-peer file sharing networks like Kazaa.

Additional features includes automatic updating of the virus database and the Network Shield, an intrusion detection system, which provides protection against known Internet attacks and worms by analysing all network traffic and scans it for malicious contents. Easy to use and highly customizable, Avast! comes with two interfaces - simple for novices and advanced for experienced users - and is compatible with all Windows operating systems.

Protect Your PC From Viruses

In the current scenario where computer security issues have come front-and-center for small businesses of all types. And for good reason. Your company's computers contain valuable, irreplaceable data that make them a target for hackers, data thieves and others up to no good.

Keeping your computers and their contents safe and secure is crucial to continued business growth, as well as your personal sanity. A breach in security could be disastrous for you and your company.
Security slips can cause of :

• Lose precious data
• Leak company or trade secrets
• Disclose sensitive customer information
• Unleash viruses on your computers
• Lead to unproductive downtime
• Require time and money to correct

If you do the following following activity, then there is fair chances that your system would be free from virus, spyware or malicious stuffs:

Take Computer Security Seriously
Every business, no matter how small, has computer security needs. If you're operating a network, using email, conducting business through a Web site, using wireless equipment or planning to grow, your security needs can be wide ranging and complex, even for a one-person operation.

Connect with Security Product Vendors Online
A wide range of vendors supply computer security products and services designed specifically for small business.

Get a Firewall
A firewall is a program or hardware device that filters information coming through the Internet to your computer or network. If the firewall detects information that could be destructive to your computers or network, it blocks it. Most small business owners can get by with a software firewall or a firewall that's included in a router (a router is what connects several computers to one modem).

Prevent Viruses
Viruses can clutter your email inbox with virus emails, make your computer run slower than usual and in worst-case scenarios, erase your hard drive.

Top 25 Tips To Speed Up Your Windows XP

Since defragging the disk won't do much to improve Windows XP performance, here are 23 suggestions that will. Each can enhance the performance and reliability of your customers' PCs. Best of all, most of them will cost you nothing.

• To decrease a system's boot time and increase system performance, use the money you save by not buying defragmentation software -- the built-in Windows defragmenter works just fine -- and instead equip the computer with an Ultra-133 or Serial ATA hard drive with 8-MB cache buffer.

• If a PC has less than 512 MB of RAM, add more memory. This is a relatively inexpensive and easy upgrade that can dramatically improve system performance.

• Ensure that Windows XP is utilizing the NTFS file system. If you're not sure, here's how to check: First, double-click the My Computer icon, right-click on the C: Drive, then select Properties. Next, examine the File System type; if it says FAT32, then back-up any important data. Next, click Start, click Run, type CMD, and then click OK. At the prompt, type CONVERT C: /FS:NTFS and press the Enter key. This process may take a while; it's important that the computer be uninterrupted and virus-free. The file system used by the bootable drive will be either FAT32 or NTFS. I highly recommend NTFS for its superior security, reliability, and efficiency with larger disk drives.

• Disable file indexing. The indexing service extracts information from documents and other files on the hard drive and creates a "searchable keyword index." As you can imagine, this process can be quite taxing on any system. The idea is that the user can search for a word, phrase, or property inside a document, should they have hundreds or thousands of documents and not know the file name of the document they want. Windows XP's built-in search functionality can still perform these kinds of searches without the Indexing service. It just takes longer. The OS has to open each file at the time of the request to help find what the user is looking for. Most people never need this feature of search. Those who do are typically in a large corporate environment where thousands of documents are located on at least one server. But if you're a typical system builder, most of your clients are small and medium businesses. And if your clients have no need for this search feature, I recommend disabling it. Here's how: First, double-click the My Computer icon. Next, right-click on the C: Drive, then select Properties. Uncheck "Allow Indexing Service to index this disk for fast file searching." Next, apply changes to "C: subfolders and files," and click OK. If a warning or error message appears (such as "Access is denied"), click the Ignore All button. 

• Update the PC's video and motherboard chipset drivers. Also, update and configure the BIOS. For more information on how to configure your BIOS properly, see this article on my site

• Empty the Windows Prefetch folder every three months or so. Windows XP can "prefetch" portions of data and applications that are used frequently. This makes processes appear to load faster when called upon by the user. That's fine. But over time, the prefetch folder may become overloaded with references to files and applications no longer in use. When that happens, Windows XP is wasting time, and slowing system performance, by pre-loading them. Nothing critical is in this folder, and the entire contents are safe to delete. 

• Once a month, run a disk cleanup. Here's how: Double-click the My Computer icon. Then right-click on the C: drive and select Properties. Click the Disk Cleanup button -- it's just to the right of the Capacity pie graph -- and delete all temporary files.

• In your Device Manager, double-click on the IDE ATA/ATAPI Controllers device, and ensure that DMA is enabled for each drive you have connected to the Primary and Secondary controller. Do this by double-clicking on Primary IDE Channel. Then click the Advanced Settings tab. Ensure the Transfer Mode is set to "DMA if available" for both Device 0 and Device 1. Then repeat this process with the Secondary IDE Channel. 

•  Upgrade the cabling. As hard-drive technology improves, the cabling requirements to achieve these performance boosts have become more stringent. Be sure to use 80-wire Ultra-133 cables on all of your IDE devices with the connectors properly assigned to the matching Master/Slave/Motherboard sockets. A single device must be at the end of the cable; connecting a single drive to the middle connector on a ribbon cable will cause signaling problems. With Ultra DMA hard drives, these signaling problems will prevent the drive from performing at its maximum potential. Also, because these cables inherently support "cable select," the location of each drive on the cable is important. For these reasons, the cable is designed so drive positioning is explicitly clear. 

•  Remove all spyware from the computer. Use free programs such as AdAware by Lavasoft or SpyBot Search & Destroy. Once these programs are installed, be sure to check for and download any updates before starting your search. Anything either program finds can be safely removed. Any free software that requires spyware to run will no longer function once the spyware portion has been removed; if your customer really wants the program even though it contains spyware, simply reinstall it. For more information on removing Spyware visit this Web Pro News page. 

•  Remove any unnecessary programs and/or items from Windows Startup routine using the MSCONFIG utility. Here's how: First, click Start, click Run, type MSCONFIG, and click OK. Click the StartUp tab, then uncheck any items you don't want to start when Windows starts. Unsure what some items are? Visit the WinTasks Process Library. It contains known system processes, applications, as well as spyware references and explanations. Or quickly identify them by searching for the filenames using Google or another Web search engine.

•  Remove any unnecessary or unused programs from the Add/Remove Programs section of the Control Panel.

• Turn off any and all unnecessary animations, and disable active desktop. In fact, for optimal performance, turn off all animations. Windows XP offers many different settings in this area. Here's how to do it: First click on the System icon in the Control Panel. Next, click on the Advanced tab. Select the Settings button located under Performance. Feel free to play around with the options offered here, as nothing you can change will alter the reliability of the computer -- only its responsiveness. 

• If your customer is an advanced user who is comfortable editing their registry, try some of the performance registry tweaks offered at Tweak XP.

• Visit Microsoft's Windows update site regularly, and download all updates labeled Critical. Download any optional updates at your discretion.

• Update the customer's anti-virus software on a weekly, even daily, basis. Make sure they have only one anti-virus software package installed. Mixing anti-virus software is a sure way to spell disaster for performance and reliability.

• Make sure the customer has fewer than 500 type fonts installed on their computer. The more fonts they have, the slower the system will become. While Windows XP handles fonts much more efficiently than did the previous versions of Windows, too many fonts -- that is, anything over 500 -- will noticeably tax the system.

• Do not partition the hard drive. Windows XP's NTFS file system runs more efficiently on one large partition. The data is no safer on a separate partition, and a reformat is never necessary to reinstall an operating system. The same excuses people offer for using partitions apply to using a folder instead. For example, instead of putting all your data on the D: drive, put it in a folder called "D drive." You'll achieve the same organizational benefits that a separate partition offers, but without the degradation in system performance. Also, your free space won't be limited by the size of the partition; instead, it will be limited by the size of the entire hard drive. This means you won't need to resize any partitions, ever. That task can be time-consuming and also can result in lost data.

• Check the system's RAM to ensure it is operating properly. I recommend using a free program called MemTest86. The download will make a bootable CD or diskette (your choice), which will run 10 extensive tests on the PC's memory automatically after you boot to the disk you created. Allow all tests to run until at least three passes of the 10 tests are completed. If the program encounters any errors, turn off and unplug the computer, remove a stick of memory (assuming you have more than one), and run the test again. Remember, bad memory cannot be repaired, but only replaced.

• If the PC has a CD or DVD recorder, check the drive manufacturer's Web site for updated firmware. In some cases you'll be able to upgrade the recorder to a faster speed. Best of all, it's free.

• Disable unnecessary services. Windows XP loads a lot of services that your customer most likely does not need. To determine which services you can disable for your client, visit the Black Viper site for Windows XP configurations. 

•  If you're sick of a single Windows Explorer window crashing and then taking the rest of your OS down with it, then follow this tip: open My Computer, click on Tools, then Folder Options. Now click on the View tab. Scroll down to "Launch folder windows in a separate process," and enable this option. You'll have to reboot your machine for this option to take effect.

• At least once a year, open the computer's cases and blow out all the dust and debris. While you're in there, check that all the fans are turning properly. Also inspect the motherboard capacitors for bulging or leaks. For more information on this leaking-capacitor phenomena, you can read numerous articles on my site. Following any of these suggestions should result in noticeable improvements to the performance and reliability of your customers' computers. If you still want to defrag a disk, remember that the main benefit will be to make your data more retrievable in the event of a crashed drive.

RAM Protection Guideline

Problem: You can’t run your RAM in dual channel mode, which allows the CPU to access both sticks simultaneously for a slight performance gain.

Solution: Both the motherboard and processor must support dual channel memory access. For example, a 939- pin Athlon 64 CPU supports dual channel, but a 754-pin Athlon 64 CPU can’t. Also, you must place the pair(s) of DIMMs in particular slots, which are color-coded on some motherboards. Dual channel mode may not work well unless you use identical RAM modules.

How RAM work well?

Problem: The metal heat spreader covering the module doesn’t touch all the chips.

Solution: Your best option is to send the RAM module back for replacement, if it’s still under warranty. If your warranty coverage has run out, you can try removing and reseating the heat spreader. Buy some double-sided thermal tape from an enthusiast site such as FrozenCPU .com. Next, carefully work off the heat spreader’s clips with a small screwdriver. Remove the metal heat spreader halves, then clean the old tape residue from it and the DIMM’s chips with isopropyl alcohol. If either heat spreader piece is bent, straighten it so that it will make better contact with the chips. Apply new thermal tape to the heat spreader halves, then attach them to the RAM module in the correct positions. Squeeze the spreader halves firmly over each pair of chips to help the thermal tape adhere, then reattach the spreader’s clips.

New Types of RAMs

New types of RAM use different edge connectors to keep users from placing them in older memory slots. From top to bottom here’s DDR2 (double data rate), DDR, and regular SDRAM (synchronous dynamic RAM), 

RAM Is Not Working

Problem: PC is not working due to RAM is causing problem


In this cease you can check your RAM by the method given below

Solution: Try different DIMM slot(s). Consult the motherboard’s documentation to determine which slots should work best with the number and size of your RAM module(s). 

Protection Of RAM

Problem: When RAM is not supporting all the motherboards.
You can remove this Problem as given below

Solution: Check the motherboard manufacturer’s site for compatibility with specific brands and model numbers of RAM modules. Note that some motherboards may be compatible with particular sticks of memory only at slower timings (such as a CAS [column address strobe] setting of 4 or 5) or FSB (front side bus)/system bus/Hyper- Transport speeds, such as 667MHz. Timings refer to how often (usually in CPU clock cycles) different operations happen in the RAM, whereas the FSB/system bus/HT speed describes the rate of data transfer between the RAM and the CPU. You may be able to change some or all of these settings in the BIOS. Other boards may require you to slightly increase the voltage to the DIMM slots in order to get the RAM to run stably. 

Why PC Show Errors On Heavy Workload?

Here is a simple method you can do to protect you pc.

Such type of errors start after PC have been running few minutes due to some problems of RAM or due to Not well working of fans.

You can remove this problem as below

 Solution: Check that the PC’s fans are all running and that there is decent airflow over the RAM and other devices. Carefully blow out any dust. Also, verify in the BIOS that the RAM is running at its specified voltage, such as 2.2v.

6 Steps To Protect You PC From Virus

6 Steps To Prevent You Computer From Virus


Steps to help avoid viruses:

Steps to help avoid viruses:

• Use an Internet firewall.
• Note: Windows 7, Windows Vista, and Windows XP with SP2 have a firewall already built-in and turned on by default.
• Visit Microsoft Update to verify your settings and check for updates.
• Note: If you've installed the most recent version of Microsoft Office, Microsoft Update will also update your Microsoft Office programs.
• Subscribe to antivirus software and keep it current. Microsoft Security Essentials is a free download for Windows 7, Windows Vista, and Windows XP. For more information, see Help protect your PC with Microsoft Security Essentials. Or go directly to the download page.
• Never open an e-mail attachment from someone you don't know.
• Avoid opening an e-mail attachment from someone you know, unless you know exactly what the attachment is. The sender may be unaware that it contains a virus.
• Use a standard user account unless you need to use an administrator account. For more information, see Why use a standard user account instead of an administrator account.

Protect your PC With Spyware

Spyware can Effect You PC By

• Invade your privacy
• Bombard you with pop-up windows
• Slow down your computer
• Make your computer crash

Here I am Writing Some Important tips by using them you can protect you pc from sptware and other damaging softwares:

• Use a firewall While most spyware and other unwanted software come bundled with other programs or originate from unscrupulous Web sites, a small amount of spyware can actually be placed on your computer remotely by hackers. Installing a firewall or using the firewall that's built into Windows Vista and Windows XP provides a helpful defense against these hackers.

• Update your software Visit Microsoft Update to confirm that you have automatic updating turned on and that you've downloaded and installed all the latest critical and security updates.

• Adjust Internet Explorer security settings You can adjust your Internet Explorer Web browser's security settings to determine how much-or how little-information you want to accept from a Web site. Microsoft recommends that you set the security settings for the Internet zone to Medium or higher. (If you use Windows 7, Windows Vista or Windows XP Service Pack 2 (SP2) and you use Internet Explorer to browse the Web, your browser security settings for the Internet zone are set to Medium by default.)

To view your current Internet Explorer security settings:

• In Internet Explorer, click Tools and then click Internet Options.
• Select the Security tab.

•  Download and install antispyware protection Microsoft Security Essentials helps protects your computer from spyware and other unwanted software. It's available as a no-cost download for Windows XP SP2 and higher, Windows Vista, and Windows 7. For more information, see Help protect your PC with Microsoft Security Essentials.

• Surf and download more safely The best defense against spyware and other unwanted software is not to download it in the first place. Here are a few helpful tips that can protect you from downloading software you don't want:

The best defense against spyware and other unwanted software is not to download it in the first place. Here are a few helpful tips that can protect you from downloading software you don't want:

• Only download programs from Web sites you trust. If you're not sure whether to trust a program you are considering downloading, enter the name of the program into your favorite search engine to see if anyone else has reported that it contains spyware.
• Read all security warnings, license agreements, and privacy statements associated with any software you download.
• Never click "Agree" or "OK" to close a window. Instead, click the red "x" in the corner of the window or press Alt + F4 on your keyboard to close a window.
• Be wary of popular "free" music and movie file-sharing programs, and be sure you understand all of the software packaged with those programs.
• Use a standard user account instead of an administrator account. For more information, see Why use a standard account instead of an administrator account.

4 Tips To Protect Your PC

• Keep your firewall turned on.

• Keep all your software and your operating system up-to-date.

• Keep your antivirus software up to date.

• Keep your antispyware technology up to date.

4 Steps To Increase Your Online Security

4 Steps To Protect Yourself Online

• Keep your firewall turned on.

• Keep all your software and your operating system up-to-date.

• Keep your antivirus software up to date.

• Keep your antispyware technology up to date.

Top 10 Tips To Protect Your Online Network

here I am writing an article on online security guidelines


Here is 10 tips for online security follow them

• Make sure you have a security policy in place -— The security policy is the formal statement of rules on how security will be implemented in your organization. A security policy should define the level of security and the roles and responsibilities of users, administrators and managers.

• Make sure all of your operating systems and applications are patched with the latest service packs and hotfixes -— Keeping your systems patched will close vulnerabilities that can be exploited by hackers.

• Keep an inventory of your network devices -— Develop and maintain a list of all hardware/software components, and understand which default software installations provide weak security configurations.

• Scan TCP/UDP services -— Turn off or remove unnecessary services. Unneeded services can be the entry point attackers use to gain control of your system.

• Establish a strong password policy -— Weak passwords could mean a compromised user account.

• Don't trust code from non-trusted sources.

• Block certain e-mail attachment types -— This list includes .bas, .bat, .exe and .vbs.

• Don't provide more rights to system resources than necessary -— Implement the concept of "least privilege".

• Perform your own network security testing -— Find the holes before the attackers do!

• Implement "defense-in-depth" -— Don't rely on just one control or system to provide all the security you need.

Three Steps To Speed Up Your Computer

Here I am sharing an article that how to speed up your computer? 

Follow these three steps to speedup your PC.

• Scan your computer for viruses with Windows Live Safety Scanner.

• Remove viruses with the Microsoft Malicious Software Removal tool.

• Download antivirus and antispyware software that will update automatically. Microsoft Security Essentials is free and works with Windows 7, Windows Vista, and Windows XP.

If your computer is still slow, you could use the free tools in Windows to free up disk space, speed up access to data, repair disk errors, and more.

In Which Position We Should Use Computer

Poor posture, lack of proper equipment and incorrect ergonomic information are all contributing factors to an improper computer setup. You can see, as illustrated here, that working at a computer can cause a lot of distress in a number of different parts of the body. With that in mind here are some key things not to do:

Avoid existing ergonomic guidelines unless they make scientific sense. Ergonomics should be based on fact, research, experimentation and theory using body mechanics as a base line.

Remember that ergonomics is personal. What works for someone else may not work for you.

• Do not settle for a desk without a keyboard tray or some other way to set the keyboard height and angle correctly. If your employer complains about the cost ask them to compare it to the cost of workman's compensation.
• Do not place the keyboard on top of the desk.
• Do not place the monitor above your head.
• Do not sit in a rigid and upright position.
• Do not lean forward.
• Do not work for long periods of time without moving. You need to take frequent breaks. They keep you awake, productive and healthy and keep you from developing Deep Vein Thrombosis.

Some Important Precusiones While Working On Computer

In addition to being an afternoon of great fun, PC repair can save you loads of time and money. No amount of fun, money or time is enough, though, to compromise your safety.

Keep these important tips in mind as you work inside your computer:

Remember to Flip the Switch

Always, always, always remember to turn the power off before servicing anything. This should always be your first step. Do not even open the computer case unless the power is turned off. Many computers have a number of lights inside that serve certain functions so check to see that no lights are on. If any are still on then the power is probably not completely off.

Many power supply units have a switch on the back, killing power to the device and ultimately the rest of your PC. If your PSU has one, be sure to turn it to the off position.

Unplug the Switch for Extra Safety

As a second precaution, it is wise to unplug the computer from the wall or power strip. If there was any doubt as to whether the computer was off before, it's settled now.

Avoid Smoke and Smells

See smoke coming from the power supply or inside the case or smell a burning or solder scent? If so:

• Stop what you're doing immediately.
• Unplug the computer from the wall.
• Allow the PC to cool or discharge unplugged for at least 5 minutes.
• Finally, if you know which device was generating the smoke or smell, remove and replace it as soon as you can. Don't try to repair a device that's been damaged to this extent, especially if it's a power supply.

Remove Hand Jewelry

An easy way to get electrocuted is to work around a high voltage device like a power supply with metal rings, watches, or bracelets on. Remove anything conductive from your hands before working inside your computer, especially if you're doing something like testing your power supply.

Avoid Capacitors

Capacitors are miniature electronic components contained in many of the parts inside a PC. Capacitors can store electric charge for a short while after the power is turned off so it's a wise decision to wait a few minutes after pulling the plug before working on your PC.

Never Service the Non-Serviceable

When you come across labels that say "No serviceable components inside" don't take it as a challenge or even a suggestion. This is a serious statement.

Some parts of a computer are just not meant to be repaired, even by most professional computer repair persons. You will usually see this warning on power supply units but you may also see them on monitors, hard drives, optical drives and other dangerous or highly sensitive components.

Power User

Another category of user, called a power user, requires the capabilities of a workstation or other type of powerful computer. Examples of power users include engineers, scientists, archi­tects, desktop publishers, and graphic artists (Figure 1-32). Power users often work with multimedia, combining text, graphics, audio, and video into one application. These users need computers with extremely fast processors because of the nature of their work.

The power user's workstation contains industry-specific software. For example, engi­neers and architects use software to draft and design floor plans, mechanical assemblies, or vehicles. A desktop publisher uses software to prepare marketing literature. A graphic artist uses software to create sophisticated drawings. This software usually is expensive because of its specialized design.

Power users exist in all types of businesses. Some work at home. Their computers typically have network connections and Internet access.

Solutions Of PC Problems

You have a PC! And if you have a PC, you have headaches too. There is no human being in this world who is using a PC without issues. Actually there exists no PC without any problems.These PC problems may start due to several reasons. For example, a simple power failure may start many different types of affects on your PC. Or you may have accidentally deleted some important system or data files. Or a virus may have entered your computer without your knowledge. The possibility of problems with computer's are countless.

Mainly we can catogorize PC related difficulties into two types as follows.

* Hardware Problems

These are the issues which are directly related to your PC's peripherals(spare parts). For example CD drive problem, Hard disk problem or Monitor malfunction etc.

* Software Problems

These issues are related to the problems from the softwares which you are using on your PC. For example, Windows did not start, Only getting 16 colors display, Modem is not working(due to drivers) etc.

Once you are struck with an issue, there are two steps to trouble shoot it. First, Find the root cause of the problem and the Second, Trouble shoot it using a standard procedure.

For fault finding, you can use the symptoms which are being shown by the troubled PC. And for solving the trouble, you can use various tools which may include both hardware and software related tools.

Here, You are going to find Solutions for Most commoncomputer problems faced by everyday PC users. You can also find some tips and tricks, freewares and recommendations for newbe users. And in future we may include some device drivers too for solving driver troubles.

Technical Support To Protect Your PC From Online threats And Virus

Viruses are basically the harmful programs which can enter into your computer through various means and can compromise the safety and security of your PC. When your computer system gets infected with viruses, you can easily recognize it because of your computer’s malfunctioning.

·         Some of the common signs of virus infection are as follows:

·          Your computer system crashes or reboots automatically.

·         Hard disk data present in your computer system gets corrupted

·         Hard disk is not detected or is not booting.

·         Computer becomes very slow in performing even normal operations like saving a file, copying data etc.

·         Some of the application software installed on your computer system crashes

·         Random messages appear on the monitor.

If you want to check the presence of viruses in your computer, you can scan your PC online and get a spyware blocker installed. Scanning your PC online will inform you about any infected files present in your system. Various online PC scanners are available from companies like Kaspersky, BitDefender, F-Secure, and many others.

Online PC scanner will run in a browser window on your computer system. There is no need for its installation. Online PC scanner is able to remove only those viruses which are already present on your computer system. However, it will not provide any protection in future. For complete computer security and virus removal from your PC in present date as well as in future you should install updated antivirus software on your computer system.