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So I'm logged onto a remote desktop session as Administrator. The CPU usage is pegged at 50% with the csrss.exe process running under the Console session as the culprit.

I can't log off the Console user from the Task Manager and I can't restart using "shutdown /r /f"

Is there any way I can force the server to restart or kill the Console session? There is no one else logged on to the server right now and I don't have physical access to reset it. Explorer is barely responsive but the task manager and command line and working fine.

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I had a similar problem once and can't recall a happy ending. I think I used process explorer to try and kill every possible process and thing i could find on the console. Eventually I froze the box and had to get the data center tech to restart the box :-( good luck. And it hasn't happened since –  james Oct 30 '10 at 1:19

2 Answers 2

Have you tried taskkill.exe /pid <pid> /f for the CSRSS.EXE process?

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Thanks for the suggestion but nothing appears to happen after issuing the command. –  Lucifer Sam Oct 26 '10 at 22:44
    
Does the server have any "out of band" management interface, like HP iLO or Dell Drac? –  Simon Catlin Oct 27 '10 at 20:38

If you have RPC access to the machine (e.g. not firewalled), you can run Shutdown.exe remotely.

shutdown \\remotehost /r

(Also, for reasons I've never understood, nltest.exe also has a remote shutdown option built into it, but not a reboot command.)

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Questions mentions shutdown /r /f doesn't work. –  Chris S Dec 13 '10 at 18:57
    
[shutdown /r /f] specified by OP is the syntax as issued from a local cmd session. [shutdown \\remotehost] is issued from a remote host, and uses RPC to connect to the machine in question over the network, potentially circumventing whatever is hanging the console session. CPU pegged at 50% tells me one of two cores is busy with misbehaving software, leaving one free; OP still may be able to administer system from someplace other than logged into a desktop session. –  AndyN Dec 14 '10 at 18:13

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