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A fatal error occured while trying to sysprep the machine. Windows 7
I was trying to create an image of Windows 7 for Windows Deployment Services (WDS) when I ran into a problem with sysprep. Every time I ran sysprep I would receive this error. "A fatal error occurred while trying to sysprep the machine." I tried both a command window and the GUI interface of sysprep. I then came across this webpage http://social.technet.microsoft.com/Forums/en-US/w7itproinstall/thread/8f5002e1-95b4-47bf-b031-4b72b3eb388a/. The problem seemed to be with one of the Microsoft Media Player processes. The process I killed was wmpnscfg.exe. You may need to show processes for all users. Once wmpnscfg.exe was ended sysprep ran just fine.
13 comments
Comment from: Brent [Visitor]
I had this same problem. Stopping the media player process worked for me as well.
06/05/09 @ 09:52
Comment from: Drew [Visitor]
I did as well, but in my case it was the wmpnetwk.exe that solved the problem after killing it in Task Manager.
06/22/09 @ 11:50
Comment from: Todd Butler [Visitor]
Thanks for the head up on this issue. I confirmed this was an issue for me in Vista Business and Windows 7 RC. Thanks again!
07/20/09 @ 08:19
Comment from: Chief [Visitor]
I will echo the others' comments: THANK YOU. This solved my issue, too.
08/05/09 @ 16:17
Comment from: Dan [Visitor]
I've been trying to figure out this problem for a few days on Windows 7 RTM and this solution did not affect the situation. Did they fix one bug just to create another?
09/24/09 @ 15:09
Comment from: Ernesto [Visitor]
Awesome, first real solution for this issue. Thanks. In my case it was another file also starting with wmpn
Thanks Again
Thanks Again
10/13/09 @ 09:59
Comment from: Jamie [Visitor] · http://none.com
Same problem..unplugged the network cable and all is fine
10/29/09 @ 09:10
Comment from: Raj [Visitor]
Oh, so the Microsoft Textbook doesn't tell you EVERYTHING you need to do... figures.
Thanks for the help on this one.
Thanks for the help on this one.
12/08/09 @ 09:54
Comment from: Roger [Visitor] 
I'm installing Windows 7 Professional and have same problem with sysprep giving a fatal error. For me there is no media player process but there is the wmpnetwk.exe which when I kill then sysprep works fine.
02/26/10 @ 22:32
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