If you are referring to Leo's button, then I see no reason why this would not work. I've used it on Dopus 10/11 and Windows 7 x64 with a Ramdisk.
The button is just doing the work for you by first picking your new location, then copying the current cache to the new location. Then creating a Windows Junction from old to new.
If the button doesn't work on Windows 8.1 or 10, I'm sure Leo would update the script if he knew of a problem.
The best thing to do is to:
- Install the Dopus trail version (if you don't already have it installed)
- Follow Leo's instructions on how to add a button from the forum.
- When ready to move the Thumbnail Cache, click the newly created button. A pop-up will ask you where the new Thumbnail Cache should go.
Hope that helps. If not, Jon or Leo will be up soon 