I have held off on installing the recent windows update KB977165 because some who install it experience a BSOD when they reboot. The problem is apparently linked to having the Win32.TDSS rootkit on the computer. I ran an in-depth scan on my machine and nothing was found, but this rootkit is supposed to be really hard to detect. Does NOD 32 2.7 detect it? I would like to make sure my machine is clean before I install the windows update, because once you get the BSOD, you have to go to a lot of trouble to fix it. I did install and run the most recent Windows Malicious Software Removal Tool along with the other critical updates besides the one that causes the problem and there was no indication that anything bad turned up.