Friday, September 24, 2010

How To Turn On You Firewall

You can turn on your firewall very easily by follow below

 Two things will keep you from using your firewall: The first is a faulty installation, which you can often fix quickly. The second is more worrisome. Spyware and other malware can turn off or completely kill your firewall as part of its plan to hijack your system. If you think your firewall did not install properly, uninstall and reinstall it using the directions that came in your software’s users guide (or see the problem below on uninstalling your firewall). On the other hand, if your firewall installed correctly and worked fine until you clicked a suspicious Web site or opened a specious email, use a spyware/adware detector to clean your system. Norton, McAfee, Zone Labs, and LavaSoft (www.lavasoftusa.com) all make well known programs that can remove most but not all malware from your system. You can also contact your firewall vendor to see if it offers a fix. For instance, McAfee’s firewalls can be attacked by spyware that very subtly edits the Windows Registry to disable it. (The Registry is a master database of program settings in nearly all versions of Windows.) It alters the following Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\Windows NT\CurrentVersion\ Winlogon\Notify\Sens- Logn to read as follows: HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\Windows NT\CurrentVersion\ Winlogon_disable\Notify\ SensLogn In the second key, there’s an extra word (“disable”). Rather than fix it yourself, it’s better to contact your support team because even the smallest change to the Registry can result in disastrous effects. Once you’ve run a spyware tool or a utility from your firewall vendor, you may have to reinstall your firewall because malware can leave it so damaged that you need a fresh copy. If the problem still persists after all these steps, contact your firewall vendor again to seek help.

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