Cleaning Thumbnail Cache Not Working?

CCleaner for Windows
1

I run Windows 7 Home.

I'm trying to clean out the thumbnail images that show up in Windows Explorer, like these:

post-77789-0-18203000-1481141921_thumb.png

I thought I was doing so when I ran CCleaner, but when I select Analyze the Thumbnail Cache, it shows nothing to clean:

post-77789-0-77570600-1481141684_thumb.png

However, when I do the Disk Cleanup utility in Windows, it says there are thumbnails present, in this case, 145 MB worth:

post-77789-0-00643400-1481141675_thumb.png

Is this right? Could CCleaner see nothing when Windows sees something? Are they talking about two different things? If CCleaner is not cleaning up the thumbnail images in Explorer, what is it cleaning up?

2

CC looks for cached files here; %userprofile%\AppData\Local\Microsoft\Windows\Explorer

perhaps Disk Cleanup looks for the thumbs.db files?

3

CC looks for cached files here; %userprofile%\AppData\Local\Microsoft\Windows\Explorer

perhaps Disk Cleanup looks for the thumbs.db files?

Are those cached files CC looks for the thumbnail pictures in Explorer?

4

I believe so.

some of my current files in that locations are:- thumbcache_96.db, thumbcache_48.db, thumbcache_32.db, thumbcache_exif.db and so on.