|Using a file recovery program 'might' be able to recovery some of the files. But the more you use the system, the chances of recovery are lessened.|
The best thing to do is remove the hard drive, attach it to another system and try the recovery. Here are some recovery programs:
PC Inspector (freeware)
Zero assumption Recovery
The demo is limited
It will only recover 'up to' four folders per run
But you can make multiple runs
Excellent, but you will have to buy it.