"EFS on NTFS" and "NTFS" are two completely different things.
Even if I only have privileges of a limited user, if I create a folder, set it to use EFS and put my files in it, there is no way ANYBODY (not even an administrator) can access the data if I am not logged on. The data is encrypted. Period.
NTFS permissions, on the other hand are very simple to remove.
1. Log in as administrator.
2. Right-click on folder/ file of interest. Open the Properties dialog.
3. Go to the Security tab and click on the Advanced button.
4. A new window opens. Go to the Owner tab.
5. Select the account that should take ownership of the object, check the "replace owner" check-box and click on the Apply button. Thats it.