turn off failure

  saxman 11:24 05 Feb 07

I am running XP SP2 and last night I did a search for virus' using ntl netguard. It came up with one result and recommended its removal.
I pressed ok and now when I try to turn off computer I get an hour glass on screen and nothing happens.
To close dow I press ctl-alt-del and log off as I have more than one user. I then click on shutdown and the m/c *!@:s down.
Can anyone help

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