welserda

I downloaded Ccleaner Friday. I ran it and looked over the files marked as shold be deleted and did so. When I logged off the system remained in the "logging off" state for an hour until I shut it down manually. Sunday morning I fired up and the system went from logging on to logging off an dstayed that way for a couple of hours until I manually shut it down. Have you hears of this kind of problem before? Dell laptop windows 7 up to daye. Dave