Going back to about 4-5 months ago up to current whenever I install my copy of "AntiVir PE Premium" on Vista 64 everything seems fine. Fine that is until I reboot the computer. Upon doing so I am greeted by this lovely message. "Windows software protection error" "An unauthorized change was made to Windows" The only fix I have been able to come up with is to boot into safe mode and uninstall the software, back months ago thinking it was a bug to be fixed I waited and tried using it again recently only to find the same issue still happening. In discussing this matter with tech support they informed me that the fix was to disable Windows Defender, this to me is absurd as none of the other 10 or so AV\ASW programs I have used has ever given me such problems. My need for running the the product is not even for active protection but a secondary non active AV for additional scanning. That being said, as I will not be running this with active protection does anyone know of any work around and am I in the wrong for thinking it is silly for me to have to disable built in protection with the OS when no other product I have seen causes an issue when instead they can simply fix the issue? - Vista Business 64-bit - Active AV = AVG Pro - Active Antispyware = Superantispyware Pro - Active Antispyware = Spybot (free) resident protection and immunization. (To know when and if anything on the system is changed). "What would be suggested as a better product then this other then say a winpatrol"?