System Administrator..Permissions...HELP

Basically my cousin accidentally thought my new computer was his.. and he set it up all in his name and what not.. I basically have changed the names of the login and what not around BUT here's my problem:

Everytime I goto Network..then click on BOB (let's just say that's my name), I see two things listed. Under Users.. MY stupid cousin's name and then "public."

When I try and change the folder's name to MY name (Bob), I always get this message:

You need permission to perform this action

You require permission from Administrators to make changes to this folder.


I've already gone to control panel, User Accounts, changed the name to BOB and made it the Administrator.. Yet I can't seem to change the folder name under USERS. I'm losing my mind here and I don't have the time to do a clean install right now. HELP!

 

You have to take ownership of the folder.

How to Take Ownership and Full Control Permissions of Files & Folders in Windows

 

Have you tried system restore?

If you change the name of a user account, the name will be changed evertwhere except in Explorer (and CMD). That's the way it works.
If you try to change the name after using Takeown, chances are that you'll mess up Windows because it won't find the folder.

I think you should make a new account, and delete the old one.

Cannot change user name folder, i.e. C:\Users\user name - Microsoft Answers

http://www.sevenforums.com/general-discussion/34749-rename-user-folder.html

 

Create a new user and then delete his?

Otherwise you will need to take ownership under the security tab then advanced.