Wondershare Time Freeze for FREE ! (previously 39 USD)
"Wondershare Time Freeze is an easy and effective protection tool to keep your computer safe from viruses, spyware, Trojans and other malicious threats. It puts the actual system under protection and creates a virtual system, on which you run applications and surf the internet. All traces and malicious threats will disappear after reboot. You can also save changes to the actual system.
- Compatible with Windows 7, XP, Vista and Win 2000 of 32 bit"
Wondershare Time Freeze-Free Virtual System Software for W2k, XP, Vista, W7