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Users with standard privileges unable to watch Live TV in Windows 7 Media Center

Posted on 2010-01-09
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Users with standard privileges are unable to watch Live TV in Windows 7 Media Center, the error message is 'Video Error: Files needed to display video are not installed or not working correctly. Please restart Media Center and or restart the computer', application restart nor PC restart do not resolve it. Playback of video files works with no problem as well as TV playback using other SW tuner (ChrisTV), running the Windows Media Center application (ehshell.exe) as administrator allows watching the Live TV even for users with standard privileges, but this is not desired solution. Security audit indicates unsuccessful event 4673 for ehshell.exe ('SeCreateGlobalPrivilege' request) whenever Windows Media Center application is started, which is followed by several events 4656 for svchost.exe afterwards, these events do not appear when running Windows Media Center as administrator. Any ideas, please?
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Question by:LUBOSFIALA
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4 Comments
 
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Expert Comment

by:Experienced Member
ID: 26273044
Try two things:
1. Temporarily make the user an administrator and set up the live TV. Ensure it works. Then restore the user to standard status and see if it still works. This method works for some software.
2. Go to the User Account Control (UAC) tool and move the slider to more permissive (that is, less restrictive) and see if that helps.
... Thinkpads_User
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Expert Comment

by:senad
ID: 26273113
Possible firewall issue ....

Do you have AVAST on board by any chance ?
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Author Comment

by:LUBOSFIALA
ID: 26334511
To my experience Media Center has no problems to run with standard user permissions, in this case something was wrong in Windows configuration. I tried to tune it (e.g. apply default security template) but no change. I reinstalled the computer from the scratch and it works OK now.
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Accepted Solution

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LUBOSFIALA earned 0 total points
ID: 26507071
FYI I have just found a comment from other guy having the same problem 'I finally found that in the ffdshow video decoder configuration that the mpeg2 setting was disabled and needed to be set to libmpeg2'.
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