I find my tool at:

C:\Program Files\K-Lite Codec Pack\Tools\CodecTweakTool.exe

I have myself only K-Lite installed, and the movies play ok. In my experience, K-Lite with media player classic always played any movie I ever wanted to play, and if it didn't it just meant it was time to update.

Your dxdiag didn't tell me anything new.

And no worries, I don't consider this working smile


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