for some reason when i type cmd in the run text box i get an error message saying it "is not a valid Win32 application" or "[it] is currently in use by another program". when i type in regedit (which i used just two days ago just fine) i also get the "currently in use by another program" message. CTRL + ALT + DLT brings up nothing. I have checked and unchecked the hide file extensions box, etc. there is no cmd.com or regedit.com file in my Win32 folder or computer. can someone please help me figure out what may be wrong?!!