How to disable user tracking in Windows XP and Vista. Disabling this feature disables customized menus and other features that require user tracking information such as which files were accessed and the times they were accessed.

1. Hold down the Windows key and press R.

2. Type regedit and click OK.

3. Click the plus sign next to HKEY_CURRENT_USER
then Software
then Microsoft
then CurrentVersion
then Policies
then click Explorer

4. Look for an entry on the right side for NoInstrumentation. If it doesn’t exist, you will need to create it. To do so, right-click on Explorer and select New > DWORD Value. Give the value a name of NoInstrumentation. Press the Enter key when you are done.

5. Right-click the NoInstrumentation entry and click Modify.

6. To disable user tracking set the Value data to 1.
Set the Value data to 0 to enable user tracking.