Fix image previews and thumbnails in explorer on Windows 7?

Just wondering if "Always show icons, never thumbnails." is unchecked.

Also, I had some thumbs.db files get corrupted (for network drives) and on local drives Windows 7 stores all the thumbs in one central db at The cache is stored at %userprofile%\AppData\Local\Microsoft\Windows\Explorer as a number of files with the label thumbcache_xxx.db. I normally use something like CCleaner to clean the cache files out.

If that doesn't work, I've had programs hijack the file association and that killed the Windows thumb generation. That is a little more complex, and I had a hard time solving that.

Hope this helps.