It's been happened to many people that they lost the entire hard disk since the trouble from virus, spyware or Internet advertisement popup. Now many computer experts even suggest people re-install Windows for the computers infected unknown virus or spyware.

When you find your computer something wrong, the first thing you will find the anti-virus or anti-spyware tools to search the bug. But you might forget the name of the tools you use before, or you don't know where to find the tool. So you will search the Internet from Google, MSN or Yahoo Search Engines. Unfortunately, the Search Engines returned so many different free tools. You don't know which tool will work for your case. Even you know the software tool name, but there are so many sites out there waiting for you to download the software. The big question is that you don't know which one is real and which one is fake. The true is that many free sites are fake. Their software might embed with another spyware. If you are out of luck, the new virus will poke into your computer when you touch their sites.

The following are the popular and safe ant-virus and anti-spyware sites.

Sometimes you know the virus or spyware names (exe, com or dll), but you cannot remove it, because it keeps coming out. Then you need to boot by non-standard Windows CD and kill bug from there. You need to create the CD while your computer is still working. The CD image cannot find in udcd4win.com. the site is at

The Fire Wall is a good protect for your privacy.

You need to prepare all these tools before you need them.