This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
I have downloaded the Windows 8.1 update from the store but cannot get it to install. Each time I try, I get to the point where it is "getting my devices ready", then 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"
There is n o explanation as to why the update could be completed. Any ideas how to resolve this?
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
You know what ? I am a faithful Microsoft user, I was a Microsoft Partner for many years; but this should simply NOT be that way.
If the update is not ready, simply don't release it, some of us need our PC/tablet for work... a lot of time wasted on this... again, you will lose credibility...
Let me know when a real working upgrade is available...
Having a similar issue. Tried to install 8.1 three times so far, still getting the same 0xC1900101-0x40017 error. Was running the latest beta video drivers from NVidia (331.40). Just tried to uninstall them and upgrade and see if it works now.
Already tried:
Removing AVG Anti-Virus
Re-enabling Windows Defender
Removing all external devices (Logitech WebCam, iPhone dock, Logitech Gamepad, USB 3.0 HDD Dock, Thumb Drives, etc)
Cleaning up the registry by removing broken stuff
Hardware:
ASUS Sabertooth X79 Motherboard
Intel 3930k CPU
64GB of Memory
2 Samsung 830 SSDs in a RAID-0 on the Intel Chipset
10 Seagate 3TB Drives in a RAID-6 on a LSI Raid Controller
1 Seagate 3TB Drive (non-RAIDED) on the Intel Chipset
NVidia 580 Video card
Two Monitors - ASUS something 2560x1600, and Dell 2405FPW 1920x1200
Corsair iH80 CPU Cooler (Didn't install this myself, I believe it has a USB connection, but haven't disabled it yet)
Thanks to everyone for the suggestion re: Nvidia uninstallation and I'm glad it's working for some of you. Unfortunately, having uninstalled the drivers and immediately run the Win 8.1 update from the store, I am still having the same problem as before. So, back to the drawing board for me :(
Your Welcome Martin. It could be another 3rd part driver as well. Next step I might take is uninstalling any extra third party device driver from the device manager (printer, Fancy mouse, camera etc.) and try it again.
OR
wait till Microsoft finds what the issue is.
I think its not limited to video card drivers but the odd third party driver it just doesn't like.
Regards,
EW
Thanks to everyone for the suggestion re: Nvidia uninstallation and I'm glad it's working for some of you. Unfortunately, having uninstalled the drivers and immediately run the Win 8.1 update from the store, I am still having the same problem as before. So, back to the drawing board for me :(
Same for me. Downloaded the update via Windows Store, installed and rebooted to a black screen.
Powered off and on:
"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"
Toshiba P300 - 1CE
