Dc122 Help

I hope this is in the right forum, sorry if its not. . .

Anyway, my problem is that I am really low on disk space, so I was trying to delete some files. I went to empty the Recycle Bin, and it appears empty, but the window comes up and says: "Are you sure you want to delete these 4 files?". When I click yes, it says: "Cannot delete Dc122: it is being used by another person or program, please close all programs that might be using the file and try again".

First of all, why would it be asking me to delete 4 files that I can't even see, and secondly what is Dc122?

Please help!

 

I would try a clean reboot. Go to Star Run Type in msconfig. Tick off the diagnostic start up ooption then reboot. Try to empty the bin then. If no luck defrag then start at step 1.