Have been running the free Windows Security Essentials on my desktop & laptop for several days. Running Windows 7 Release Candidate 64 bit on the desktop and Windows Vista 32 bit on the laptop.
Link to Windows Security Essentials
Web site also mentions it will work with Windows XP as long as service pack 2 or 3 is installed.
Only change I made was under settings to scan daily @ a time I may have the computer on and took out the check mark in: "Start the scheduled scan only when my computer is on but not in use". That way it starts the scan in the background.
It will automatically update the latest updates before the scan starts.
Does not seem to pole the processor heavenly either like some other anti-virus software.
Link to Windows Security Essentials
Web site also mentions it will work with Windows XP as long as service pack 2 or 3 is installed.
Only change I made was under settings to scan daily @ a time I may have the computer on and took out the check mark in: "Start the scheduled scan only when my computer is on but not in use". That way it starts the scan in the background.
It will automatically update the latest updates before the scan starts.
Does not seem to pole the processor heavenly either like some other anti-virus software.