I have run anti-virus and anti-spyware software on a PC after it was infected and upon restarting the PC, it lets me login as the user but then goes to a blue screen and does nothing else. I have determined that the explorer.exe file is not in the task manager list and when I locate it, it is not recognised by the computer, saying "Windows cannot find 'C:\WINDOWS\explorer.exe'. Make sure you typed the name properly and try again."
At this point I am stuck as to what I should do next. any ideas?