To remove a user or group from the audit list
Open Registry Editor
Click the key whose Audit list you want to change.
On the Edit menu, click Permissions.
Click Advanced, and then click the Auditing tab.
Click the user or group that you want to remove, and then click Remove.
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on your computer.
To open Registry Editor, click Start, click Run, type , and then click OK.
You must be logged on as an administrator or a member of the Administrators group to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.