Hello all, I have a similar problem from the looks of it on this forum, from a hard try at a removal of Live Security Platinum. Long story short, I changed the name of the files that it had planted on the computer using the advice of others and deleted such files and for the most part, it worked. But it was a crude and dirty removal. I uninstalled-reinstalled my copy of MSE to find the following trojans: Sirefef.y/Sirefef.x. After detecting the trojan, I get a notification that my computer has encountered a critical error and is shutting down in 60 seconds. Using the CMD to preform "shutdown -a" does absolutely nothing. This happens in all modes and is not nearly enough time for me to do anything about this problem properly, or to install software such as MalwareBites, other than trying to mess around with my MSconfig in safe mode which hasn't given me any avail. I am new to these forums and I am in dire need of a solution to this issue. I see many coders giving out fixlist, but I am completely new here so I'm not sure how I should go about this. I have a working USB disk drive, so this is a start. Specs: HP Laptop Pavillion dx4 Windows Vista Home Edition x64 Where should I start? I can follow instructions thoroughly and hope I can fix these problems.