This has happened to me.
Go into safe mode (to do that, hold on F8 while starting up your computer.
Log In to the Administrator Account.
Go to the folder you can't access. Right click on it and click Properties.
Click on the Security Tab, and then click ok on the security message (if one appears).
Click Advanced, and then click on the Owner Tab.
Check to see if your username is in the list. If not, click on Add Name (I think.) Type in your username and make sure you select all the check boxes. Click OK.
Tell me if that doesn't work and I'll try to find something else.
I've had access restrictions to my documents folder placed on the D-drive in my Windows XP. Then I formatted my Windows partition on the C-drive and after reinstalling XP my documents folder doesn't recognise my and therefore i can't access all my files. Logically enough i guess.
But how do I get access to all my stuff???
Sincerely hope somebody can help me.
Best regards Peter