Access is Denied w/many C:\users\ folders

Everything on my laptop was working just fine. I have a folder called C:\My Documents where I kept a lot of personal files. I moved a folder from that location to another location. And afterwards, everything in the C:\My Documents folder disappeared. I first thought maybe they were accidently dragged to a nearby folder. But can't locate them anywhere.

I then downloaded an undelete program to see if they were deleted, but it was unable to find them. So how does that many files just suddenly disappear? I started researching for this and saw something about C:\users. However, many of the files in there give me an "Access is Denied" error message. I feel that my files are still there somewhere, I'm just unable to retrieve them for some reason.

Can anyone help me with this? All the documents that I've created were in that C:\My Documents folder. I'm running Vista 32bit.

Thanks
KenDawg

Welcome Ken
First use the computer as little as possible. In the event that the files were deleted they are still on the hard drive. The more you use the computer the more difficult to find the files
Download Shadow Explorer. I am sure they will help you find the files
ShadowExplorer.com - About
After you have found the files, try a System Restore to see if you can make things the way they were prior to the problem.
http://www.vistax64.com/tutorials/76905-system-restore-how.html