Psychotic virus

We all hate them, don't we? The only thing we hate more is the person or persons who created them. Yesterday a customer brought me an infected PC. The virus lodged in the windows/system folder (write protected). Having established itself, it simply ignored all attempts at removal. Not only does windows protect the infection, it risks spreading it as well.

The only solution was to back up as much stuff as possible before formatting the drive. Pity about the files lost that weren't backed up. Are you reading a moral to the story here? Always keep a current backup of your important files!