I have a client with a computer that fails whenever she tries to copy a file using either Windows Explorer or a 3rd party file management program such as Explorer ++. It does not matter if we try to do a copy and paste or if we just try to drag the file and/or folder to the new location. It does not seem to matter where she is copping the file from or to.
I have run a SFC /scannow which found an error and supposedly corrected it.
Running Windows 7 Home premium
8 GB RAM
1TB HDD (in 2 partitions)