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#11
Right click on wmplayer.exe in resmon and select Analyze Wait Chain...
Post a snapshot of what you see there
Right click on wmplayer.exe in resmon and select Analyze Wait Chain...
Post a snapshot of what you see there
Hmm it looks like your pointers to the perfmon Counters are corrupted, you have to rebuild these with LODCTR from a elevated command prompt:
Close resource monitor
Click Start, and Click Run and type cmd
At the prompt, type lodctr /r and press ENTER. This will repair the pointers with the system backup store.
This will definitely solve your problem.
Strangely enough, I opened resource monitor again to do this, and now it's working! (I just fixed some broken shortcuts in the Public folder where the videos were - I don't know whether that had anything to do with it.)
The question now becomes, why is media player thrashing the hard drive? I've got 16Gb of RAM, but looping a 45MB video causes WMP to constantly read the file from disk (that's the 4Mb/s shown earlier).