If you want to forego the advantages of background monitoring, you can turn it off in a single step. Start the Registry Editor from 'Start I Run I regedit' and click 'OK'. Navigate to the 'HKEY _CU RRENT _USER\Software\ M ic rosoft\Wi ndows\Cu rre ntVersion\ Policies\Explorer' key. Create an entry called 'Nolnstrumentation' with 'Edit I New I DWORD value' and open it with a double click. Assign the value '1' here and click on 'OK'. If you want the setting to be valid for all users, create this DWORD value in the "HKEY_LOCAL_MACHINE\ SO FTWA R E\M icrosoft\Wi ndows\Current Version\policies\Explorer" key too.
If you want the setting to be applicable to only certain users, log in as that user and then carry out the step previously described. After you close the registry, restart the computer for the changes to take effect. NOTE: With this entry, you cannot only prevent future monitoring, but you can even delete the list of previously used programs used from the Start menu. The document history will not be removed, but it will not be populated with entries.