Have you tried running an AV in safe mode?
If you go START>RUN and type msconfig you can put windows in diagnostic start-up mode, which might keep things running while you work on finding the problem.
You can also initiate a system restore from the same panel.
If you go START>RUN and type msconfig you can put windows in diagnostic start-up mode, which might keep things running while you work on finding the problem.
You can also initiate a system restore from the same panel.