similar problems here.
I updated to 8.1, ran and old version of CCleaner to clean the registry and it whacked the MS Store APP, which then wouldn't let me roll back to 8.
had to clean format and install drivers disabling driver signing. ugh. there goes a day.
this time I set restore points along the way.
 
everything fine now, although where was that one plugin...
(((and WTF doesn't cakewalk install the last versions of add-on's you've purchased)))

 I did the update over an existing Windows 8 pro x64 without issue. Everything I try is working fine. 
 I updated my 6 year old laptop without issue also. 

Edirol PCR 800 not working with Windows 8.1

I have no interest in updating to either Windows 8 or 8.1. I'm on Windows 7 and everything is working perfectly..no need to change.

Fine here so far.

djwayne
I have no interest in updating to either Windows 8 or 8.1. I'm on Windows 7 and everything is working perfectly..no need to change.

What djwayne said.
 
Walt

Ref my comment a few posts ago....
I found (or was informed that) I had an email account that I had no memory of and all of my verification emails were being sent there. Ooops.
I take back any criticism I may of made about Microsoft Support and I am now a happy bunny with my PC, and the world in general. 
 
Grum

Metalbat
Edirol PCR 800 not working with Windows 8.1

Roland has new drivers for 8.1 for the A Pro series....probably the same as Edirol.  I am waiting for the driver for the VS 100.

Sandmännchen
I would always recommend a total clean install of Windows 8.1 on a fresh formatted drive.

Fine, but don't you have to have a W8 licence to update or if you want to do afresh install, buy W8.1 from the store ???
 
Cheers,
Jerry
 
PS : personally I would NOT upgrade.

You guys are scaring me... I have WIN 8 working great with X3 and all my UAD stuff.... was thinking about going to 8.1, but not if it is going to add more headaches....
 
Lately, between all the software upgrades (including Sonar) I have been installing and configuring stuff more than making music.  
 
Are there any advantages to 8.1 vs 8.0?