I made a very dumb mistake and I am hoping there is a way to fix this without having to boot in through a Linux Live CD and extracting the data.
My user login to my Windows 7 system is: John John is part of the Administrator's group.
I have a folder called "C:\Users\John"
I tried to make this folder accessible to ONLY John (and deny from all other Administrators) by going to the Folder, Right Click > Secturity tab and then selecting all the checkboxes under "Deny" while having selected the "Administrators" group.
As a result, I cannot access this folder from any of the accounts: "John" and "Administrator" as both of them belong to the Administrators groupd and deny permissions out-weigh the "Allow Permissions"
Is there any way I could revert this back? Thanks a million!