First off, DON'T make any more changes to your PC. Use another PC for forum browsing, if at all possible. And don't create any new files or install programs!
I'm assuming that the files on your PC were erased, but that doesn't mean it's not retrievable. Deleted files, assuming you don't overwrite them with new data, can be undeleted - there are several tools out there to do file restoration.
One that I use, since it's free:
Restoration Freeware download and review - file undelete utility from SnapFiles. But, there are probably better commercial apps out there.
EDIT: Never mind, I see that you managed to get your files back! No idea what might have happened, but I'm glad to hear that it's resolved.