Has anyone heard about this program?This is one of the most amazing piece of software,i am using it now and it does all that it says,which is.. "No Computer Downtime. All changes are temporary! Full utilization of expensive computer assets.Deep Freeze® "freezes" your software configuration.Whatever hackers, mischief makers and innocent clickers attempt, their "work" will instantly disappear when the computer is restarted. All settings, files and programs are 100% restored to original configurations every time. . FullAccess for Users The computer operates without restrictions or securitybarriers and all programs run normally.Deep Freeze is invisible and totally non restrictive and does not interfere with programs. The user enjoys full access to all computer functions. Deep Freeze has set a new high standard of reliability Simple & Extremely Flexible Deep Freeze requires NO setup or configuration.Just install, restart and its working. Save files to a floppy, network, or into a specified Deep Freeze "thawed" space (Pro version). It's easy to make permanent changes; just turn Deep Freeze off and install or removeyour programs or make configuration changes." I must say this is a very impressive security tool,even if a virus strikes you,all you have to do is to restart. But there is one drawback,with Deepfreeze enable,my pc takes about 4 minutes to start(yes thats really annoying and thats why when i first installed it,i formatted my hard drive thinking that something has gone wrong,and deepFreeze does'nt let you restore registry and boot in safe mode) and i have PIII 1.2ghz,which normally starts in 30 seconds.Maybe it is handled better in pro version,i am using trial version. I think you should give this a try,i am feeling very relaxed while it is enabled.