Chevy Chase, MD
MonaRonaDona (and its "fix") come nowhere near any setting that would effect your ability to do a shutdown normally.
I think it best you raise this as a new issue in the Security Cleanup Forum. Be sure to follow the prerquisite steps in large letters at the top of the Forum prior to posting.
We will run some diagnostic tests to see what is up.
MS-MVP 2004 - -2008, ASAP Member
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