I have had this problem for a couple days. I cant open control panel, explore, my computer, nothing.

any suggestions?

Try using the Ultimate Boot CD for Windows and restoring to a previous restore point. You can download the cd iso here: http://ubcd4win.com/.

re-install and repair windows..

What can you do after booting up? There is another thread from a year back with the same problem. Have a search for it.

you can restore you windows from last change
start>all progrum>accessories>system tools>system restore.

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