Unable to access my documents/applications on Windows 7

Hi,

 

I had encountered some virus in my laptop and have tried norton internet security initially to detect it. Later, I had installed Norton power eraser as the above product didn't help me much. After downloading the power eraser and running the same, i think the virus issue has been resolved, but my desktop screen is still black.

 

But, the applications / my documents from "Start" programs & shortcuts on my desktop are unaccessible after the virus was attacked. Could you please advise if Norton has secured all these from being attacked by the virus (or) is there anyway I can be able to restore to the previous working condition by chanding the settings on regedit ?

 

Unfortunately, the information in the below link is not of any help since none of those settings have changed in the regedit file -

http://answers.microsoft.com/en-us/windows/forum/windows_vista-windows_programs/unable-to-open-exe-files/039ceca1-c81f-4136-8c04-bf13c0378495?page=15

 

Looking forward for your response at the earliest. I've subscription to Norton internet security.

 

Thanks,

Pavan.