Dear all
I've just had a fun old time installing Windows 8.1 as an upgrade from Windows 8.

- Ramdisk driver (from 'PrimoRamdisk') not working - fixed this by reinstalling the program.
- Weird duplicate library-like things, which turn out to be sort-of new libraries. which I shall call 'Folders' (capitalised). I fixed this by finding registry fixes to download and - in the case of a 'public downloads' Folder - finding the relevant (numerically-entitled key) in the registry myself, and deleting it. (The web contains at least one other report of this problem.)
- My desktop folder had been set to the folder that the 'public downloads' Folder pointed to.
- The 'skip disk check' time seemed to have become set to one second, causing problems with a large hard drive that, after previous problems, Windows insisted on checking sector-by-sector with no abort option.[/list]
The one remaining problem is that I can't turn off the desktop text drop shadow. The relevant checkbox is unticked, and the relevant registry stuff seems to be as it should be, and yet, those shadows persist - rendering my desktop icon titles very rough on the eye.
Anyone had similar experiences? I bet you have!

PS: Please don't advise me to switch to a better operating system (because I am unsure I like any of them and, anyway, my life is rather in hoc to Windows, sadly).
[EDIT:] PPS: Application launching does seem a bit faster than before the installation, though.