Got help here before, hoping to again.
I have a Dell Vostro 1000 that got infected yesterday with what appears to be a trojan horse SHeur2.CIWP. I ran AVG scan and this trojan is what was returned.
Beginning with the Malware and Sypware cleaning guide, I downloaded and ran TFC. It did its thing, asked for a reboot. The computer will not reboot. It will start to boot, then give me the logoff tone and sit idle for minutes. I finally got a message box that say winlogon.exe Application Error unknown software exception (0xc0000008) occurred at location 0x7c9666c6.
Hitting cancel to debug the program returned a BSOD fatal error. Same process happens again when trying to boot.