Video Thumbnails not appreaing

I noticed recently that most video thumbnails are just the windows media player generic file. I haven't done anything different or uninstalled anything lately, how can I fix this?

Darician said:

What format are these videos?

Every format, wmv, mpeg, avchd, mts, etc.

AVCHD should be a folder structure, like a BD format. Not a File type

Try this:

From Start
1) Right Click "My Computer" and Choose Properties.

2) Click "Advanced System Settings"

3) Advanced Tab --> Settings

4) Visual Effects tab

Make sure "Show thumbnails instead of icons" is checked.

Also go to the video folder > Organize > Folder and search options > View tab > uncheck the first box "Always show Icons, never Thumbnails"

Wishmaster:
That box was already checked.

whs:
That box was already unchecked.

Hmm, now I am at a loss. What is actually the file format of those videos?

whs said:

Hmm, now I am at a loss. What is actually the file format of those videos?

Every format, such as .WMV .AVI .MPG .MTS and others.