Re: Annoying - and not the OS
Got the upgrade shortly after waking up this morning
1. Painless install: 10min download + 30min unpacking while I used the PC,then 30min+ watching it install.
2. Broken hardware support as it replaced 2 tuner drivers with the same, broken 64bit copies I also had to override after installing Win8. Watched it replace my GPU driver with a dumb Microsoft build, disabling *every* setting apart from resolution. Then watched 8.1 persistently resist better GPU drivers. What fun. Not.
3. Upgrades make less effort to disrupt the desktop than I expected. Can't see anything they improved yet though, unless it's those Metro apps I've never used. They have materially interfered with both Classic Start and UXStyler in petty and annoying ways.
Anyway, after wasting hours patching up after the 8.1 install one very positive result: it actually installed with just 7.7Gb of spare space and cleaned up some of the crud Win8 had accumulated. Other than that I'm seeing absolutely no reason to bother with the update for desktop users.