Windows 7: Photo thumbnails in Explorer won't update after photo altered

Explorer won't update thumbnails after I alter a photo, for example by rotating sideways photos (that is, permanently rotating, using a photo editor program), or by cropping.

How do I get the thumbnails to update?

This is happening for all photos (not just certain ones).

I have tried:

- View > Refresh

- Copying the photos to a new folder and renaming them. Even if a photo has been drastically cropped, the thumbnail is still showing the original, whole one - that is, it's showing parts of the file that DON'T EVEN EXIST



- Entirely disabling the thumbnail cache: Group Policy Editor > 'Turn off caching of thumbnails in hidden thumbs.db files'. This *must* force Windows to redraw the thumbnail - but it doesn't!

- Restarting computer after each of the above steps

Win 7 Pro, 64 bit. Photos are jpegs from a new digital camera.

thats a strange issue ,
try a sfc scan for now until someone who may know comes by.
run it 3 times, good luck!
SFC /SCANNOW Command - System File Checker

OK, thanks. Did the scan three times. It didn't find anything.

Thumbnail Cache - Clear and Reset

OK, thanks. Tried it, didn't do anything.

did you tried the .bat file ? and restarting your pc after that ?

I haven't tried that. I don't know what it is.

Check this link Icon Cache - Rebuild

it has a .bat file that you can download and run safely, try that and then restart your pc.

OK thanks. It'll be a while before I can try this...