"Couldn't update to Windows 8.1 - 0xC1900101 - 0x40017"

Well, I tried disabling every device in device manager (minus processors and system and keyboard/mouse), and once again (shocker), no love.

I, too, disabled every device (uninstalled actually) and even disabled various (e-SATA, USB, PCI, onboard-audio, etc) in my BIOS. Made no difference same error.

I wish this got bigger media coverage. I really doubt MS is even doing anything about this -- at least they should come out with some type of statement (or, admit error and remove it from the store as they did with RT). Or, better yet -- make it available for a download/ISO so we can do a clean install rather than going through the "Store" BS.

Well, I tried disabling every device in device manager (minus processors and system and keyboard/mouse), and once again (shocker), no love.

Do you know if there's a way to disable RST while upgrading and then bring it back when everything's done? I think I've got a similar setup to you, Dell XPS 8500, 2x spinning disks, RAID1 for data, mSATA SSD for system. I've long suspected the graphics drivers were a little off but RST has behaved badly in the past, it may be that causing my problems.

I am also having exactly the same problem upgrading my Acer Aspire from Windows 8 to 8.1. Everything is up to date and I have nothing connected apart from the mouse and keyboard.

I have tried 3 times to install the upgrade but I get the blue screen and it restores Windows 8.

Well, they did say they "got rid of the bloat" by stripping out many drivers and what have you, although I'm pretty sure I didn't see a guy with baggy pants and red ball on his nose giving this speech, but hey, these are funny guys!

On an even more lighter note, from what I'm gathering, only Intel/onboard Intel graphics cards are working.  Anything AMD and NVidia is failing.  That's why I was able to update my yoga?  IDK.  I'm not really willing to rip out my video card in my desktop to test this theory.  I mean, tearing out components to make software work sounds so darn convenient, but ugh... I'm just that darn lazy.

Oh, and it's not drivers... I've got NVidia experience installed, so I get the latest and greatest in technology delivered to my PC the moment it happens!

(I also tried disabling all my drivers and installing - know what happens when you uninstall your video card?  Funny stuff...)

Hold up guys... I'm going to run the update again.  What's another 1/2 hour between friends?  (Microsoft, we're friends, right?)

I do appreciate we only have to go through 1/2 hour of checks instead of hours redownloading - they definitely got that right (maybe they knew many of us would be practicing the definition of insanity?)