laptop won't shut down

  palinka 11:32 18 Nov 2004
Locked

Ran Stinger on a friend's laptop. Found Sasser worm and deleted it, But while this was happening everything disappeared from desktop leaving just the background (blue)screen. Now I can't switch off as there's nothing to click and control/alt/delete has no effect.
suggestions please.

  palinka 11:37 18 Nov 2004

just solved it myself - press control/alt/delete harder and longer!

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