A problem has recently come up with our primary DC, an associate of mine installed the remote agent on the server for backup exec 11d. A few days later I noticed that the server was being unresponsive. I can not stop any services, including the remote agent, and I cannot uninstall it either. I also can not get to network connections, as it just locks up. Rebooting the server also does not work, and I have to force it to power off, and when it loads up, it takes around 40 mins to apply the settings for windows, and another 40 mins to login. The funny thing is, it's purring when it comes to being a DC and users accessing files, it just seems like something is locking up the front end services. Any ideas? Can you reboot a DC into safe mode?