Hard to say. Could be hardware, could be your front end (which is??). Try to disable the front end, and see if you can do regular Windows things. If neither, try going into safemode. If it won't allow that, I'd say likely hard drive corruption. Time to wipe and re-install. Better off that way, anyways. Lots of goodies since....'03.
Scifi frauds. SF illuminates.
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