MPEG files won't show pic in thumbnail display


New Member
I'm sure I have all the codecs because the files play in wmp, but the thumbs in all three thumb views still show the app pic


New Member
It can be caused by a bad or improperly installed/registered codec, one assigned to mpeg playback in your system.

I don't know exactly how to fix this problem, never had it. Reconfiguring or reinstalling the mpeg codec may help.


regedit --> HKEY_CLASSES_ROOT\mpegfile, "ShellEx" folder with this key {BB2E617C-0920-11d1-9A0B-00C04FC2D6C1} and with this value {c5a40261-cd64-4ccf-84cb-c394da41d590}.


Senior Member
In folder options make sure the "always show icons, never thumbnails" block is not checked.

I always check the "display file icon on thumbnail" block also to see which media player will open the file.

If need be, install Windows 7 Codec Pack


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