My computer not displaying any of the drives

[richujack]

Last night while downloading and copying some videos to D drive i was not able to see any of the files other thsn thier names....then went back to my computer and there was no hard drives......i hav a dual boot windows 7 U x64 and Windows 8 pro x86...this happened in win 7......pls help me out guys...tried using another account in windows..still showing the above problem......

 

[patio]

Did you interrupt the DLoad ? ?
Have you re-booted the PC ? ?

 

[richujack]

Tried all the ways still not working....going to format...