windows defender

  Pugster 23:56 23 Aug 2007
Locked

I have been running defender in Vista for 4 months without a problem. Now all of a sudden windows security shield appeared in my tray. I went into security and it says defender is turned off. When I try and turn it on it just says that there are no definitions to update. Defender seems to be working fine as I receive updates and it scans automatically as I set it to. Does anyone know why windows security won't let me turn it on even though it is actually on?

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