I cannot figure this one out for the life of me. Every Friday night / Saturday morning my dc will freeze up for no reason I can see. It happens between 1:00 am & 1:10 am. I reboot the server and it is fine for the rest of the week. Nothing wrong is being indicated in any of the event logs. The only app I run on that server is websense v 7.1 (also IIS). I run a db download of websense every Sunday when we are not running production. Other than that the only other thing going on is the websense log server (Mon - Sun). I'm wondering if it could be a serivce. My question is can anyone tell me what unnecessary services I can turn off on my dc? Also how else can I trouble shoot this issue when the event logs show no major issues?