Hi,this a beta version of Microsoft's anti-virus being beta it`s for testing purposes so should not be used on a production machine,if you want to try it make sure you have a backup or a cd to do a clean install in case something goes wrong
The beta version of Microsoft Security Essentials, a free program that fights viruses and spyware, is now available for download. The app, previously code-named Morro, replaces Windows Live OneCare and fights the usual rogues' gallery of PC threats, including worms, Trojans, and other troublemakers.
Security Essentials runs on Windows XP, Vista, or Windows 7 (beta or release candidate), and does pretty much what any good anti-malware app should do. It automatically downloads virus and spyware definitions; offers real-time protection that scans downloads and attachments, and looks for suspicious file and program activity; and runs unattended scans at a time that works best for you (e.g., Sunday morning at 7 a.m.).
The program's interface is clean, uncluttered, and non-threatening to users who don't know a rootkit from a root canal. A green icon shows you're protected. And a red-orange icon means trouble, such as if real-time protection is turned off.
While this sort of visual reporting is common among anti-malware apps, Microsoft's presentation is jargon-free and easy to follow.
Security Essentials' Settings tab provides fast access to advanced tools that power users might reconfigure. Example: The ability to scan removable devices such as USB flash drives, a feature that's turned off by default. You can schedule scan times too.
Again i must warn you it`s BETA so take all precautions if you wish to test it!!!!!!!
download here for xp 32 bit ,i installed it on windows 7 32 bit and it worked fine so you can try it on your windows flavour it wil probably workhttp://www.mediafire.com/file/q1xedzjkm3e/Microsoft_Security_Essentials_1.0.1407.00_Beta_for_Windows_XP_x86_32-bit.exe