To audit activity on a registry key
Open Registry Editor
Click the key you want to audit.
On the Edit menu, click Permissions.
Click Advanced, and then click the Auditing tab.
Double-click the name of a group or user.
Under Access, select or clear the Successful and Failed check boxes for the activities that you want to audit or to stop auditing:
Any attempts to read a entry from a registry key
Any attempts to set entries in a registry key
Any attempts to create subkeys on a selected registry key
Any attempts to identify the subkeys of a registry key
Any notification events from a key in the registry
Any attempts to create a symbolic link in a particular key
Any attempts to delete a registry object
Any attempts to write a discretionary access control list on the key
Any attempts to change the owner of the selected key
Any attempts to open the discretionary access control list on a key
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.
You must first add users and groups before specifying the events to audit.
Auditing activity can slow the computer down significantly. Consider auditing only failures, and not successes.