Someone has denied me the access to my D: of my PC.
Whenever I click on D: it shows access denied.
I have all my back ups there.
Please help me out to open up my D:

Have you restarted the machine recently, is this a partition on 1 drive C: or an external drive, has anything been installed recently, hardware or software?
Are you logged in as admin, can you right click on d: and see what properties says