Summary: A recent update for Avira AntiVir Personal is causing serious issues with other programs on Windows XP. These issues may manifest themselves when running SpywareBlaster as: An inability to check for or download updates ("Error Connecting to Update Server"). An inability to enable all protection (ex. thousands of items with protection disabled). Other applications are affected by this bug in Avira as well (although the issues may vary), including (based on Internet reports) Microsoft Visual Studio 2008/2010. Problem Software (+ tested versions): Avira AntiVir Personal (Free), 10.0.0.607 on Windows XP Detailed Workaround: It is possible to disable the buggy component of Avira AntiVir Personal, and continue using the rest of the product (until a fix is made available by Avira). Open Avira AntiVir Personal. (There is likely an icon on your desktop, or in your system tray by the clock.) Click the "Configuration" link on the main screen. This opens the configuration panel. Check the "Expert mode" option. Click on General > Security. *Uncheck* the option titled "Protect files and registry entries from manipulation". Click the "OK" button. Reboot your computer. After a reboot, you should now be able to use SpywareBlaster (and any other affected applications) without issues. If you continue to have issues with SpywareBlaster or other applications, or do not wish to follow the steps above, you can also resolve the issue by uninstalling Avira and replacing it with another anti-virus solution.