I have got in an undefined situation my C drive that is inside my computer has been hidden and now it is not visible . I tried up to open other folders but none of them are responding and gives error message that this operation has failed due to restrictions on this computer and I am not able to view any file or folder too. I tried to click on Start button it sometimes did not worked but after some time it showed only turnoff and remaining icons were not there . S can somebody tell me what has happened to my computer and how I can recover from it.
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