i'm frequently asked how this is done. i thought i'd post it here for anyone that needs it. basically, you have to stop the mom service to do this properly. that's step one. delete the contents of the cache folder, then spin up the mom service. here's the contents of the batch file i use for this (watch for word wrap): net stop mom del "c:\documents and settings\ all users\application d ata \microsoft\microsoft operations manager\%1\"*.* /s /q /f net start mom that's it.