Changed file permissions now cant change them back

Hello i am running win 7 ultimate x64 and have this major problem, here is what i did:
i needed to pawn my laptop for a short time and didnt want my files to be viewed by anyone while it was not in my possesion, so what i did i changed the file permissions of my c: drive so that only admin had fulll control and no one else. well now i cant access my c: drive with my admin accrt. nor will it let me change the file permissions either. also a hand full of other things will not work such as the internet explorer icon on the task bar or start menu but i can open i.e. from the recently viewd submenu from the i.e. icon on the start menu. also i can open files on my c: drive from any old shortcut icons i had left on my desktop but i cant acces them directly from explorer. so i found some work arounds but really need to get full control of my h/d. thanks for the help!

Administrator = the Administrator account - Unique (S-I-D) based permission
AdministratorS = standard (S-I-D) based group

brady said:

Administrator = the Administrator account - Unique (S-I-D) based permission
AdministratorS = standard (S-I-D) based group

im not sure what your telling me here

Brink said:

Hello win7KidnapymyHD, and welcome to Seven Forums.

You may be able to do a system restore at boot using a restore point (if available) dated before you made these permission changes to undo them.

Hope this helps,
Shawn

I didnt have sys. restore on...... doh! no restore points

I also like to ad that when i try to take ownership or anything similar to that i get access denied. is there some type of program or something i can do to the registry?