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

Hi,

I also have this issue.

On the Blue Screen, the error message is "SYSTEM_SERVICE_EXCEPTION - win32k.sys"

And then I have exactly the same error code: 0xC1900101 - 0x40017

-I unplugged every devices on my laptop (including the mouse)

-All my drivers are updated

My computer: laptop ASUS N71Vg

-Intel Core 2 Duo T6600 @2,2GHz

-4GB RAM

-Nvidia GT220M

-Ethernet Qualcomm Atheros AR8131 PCI-E Gigabit

-Intel Centrino Wireless-N 1000

-Intel ICH9M-E

-HD Hitachi

Windows 8 Professionnal (downloaded via MSDN, RTM version) - x64 / Dual boot with Ubuntu 13

Did similar as I also suspected the ATI drivers were the cause. Removing them was a bit of a job, resorted to doing in safe mode in the end as the screens kept blanking out and the whole system stopped responding when they did.

Tried an upgrade without the ATI drivers and it still failed.

As my machine has on-board graphics too I used that output for my next attempt, it behaved differently, getting stuck on 81% of "preparing devices" (or words to that effect) instead of re-booting to blank screens. Still no joy though.

Having read the installer log, the device referenced closest to the error message is my RAID controller. I think that's the next target for some investigation...

I have exactly the same problem:

Toshiba U400-15B  laptop.  4 GB Ram Intel Core 2 Duo P7350 @ 2.0ghz, 150GB free

Running Win 8 Pro quite happily and successfully ran Win 8.1 preview without problems.

Hard drive formatted and WIn 8 installed from disk. Only other install  Office 365.

Nothing else installed, no external keyboard / mouse or drives.

Get message after  Windows 8.1 update from the store the PC restarts to a blue screen with error message. It then tries to recover the installation, fails, then restores Windows 8. When the system boots up after this, I get a message saying:

"Couldn't update to Windows 8.1

Sorry, we couldn't complete the update to Windows 8.1. We've restored your previous version of Windows to this PC.

0xC1900101 - 0x40017"

No antivirus or firewalls installed and all updates from  Microsoft and Toshiba installed.

Help please.

             i too can join the 8.1 has failed club

there we go, perfect way of saying it! can someone rename this thread, The 8.1 has failed club? Would make it a lot easier for people to find and comment on it!

This is a complete joke. No guidance from Microsoft that works, updating drivers doesn't help. Unplugging things doesn't help. Just rumours of issues with file locations and video drivers.