It seems I just can't stay satisfied. I love fd-isr and have it, but a week and a half ago or so, I got the insane urge to try DEEP FREEZE. I spent a few days reading all the current info I could find about it here and elsewhere and was impressed. I first booted into the clean snapshot of fd-isr which effectively got rid of just about all the useless programs I had on this computer, downloaded DF and removed fd-isr (maybe temporarily, maybe longer) and cleaned out what very few files it left behind. Deep Freeze took no time to set up other than setting a good, strong password and it's been running flawlessly for the past week and a half. An added plus is that my computer seems to like the combination, and runs faster - although the few fractions of a second here and there and a few seconds faster boot are irrelevant to me. To add a bit more safety and security, I installed Sandboxie prior to freezing. Between the security of Sandboxie and Deep Freeze, I'm quite happy so far, to the point that I might have to buy this thing before the 30 day trial ends. I'm a very low risk surfer, so haven't done a single thing to test the above against any malware or anything else and don't intend to. What it boils down to, I guess, is that I'm constantly in search of the most security with the least impact and/or number of programs and intrusion.