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

Yes, done all that and ALL the other 'fixes' but it still doesn't work.

There are many thousands of us with hundreds of different computers so how can it be the computer-come on Microsoft, admit it it's just one almighty blankety mess-a gigantic piece of incompetence. The very least MS should do is apologise internationally and get it fixed. No excuses, just facts.

Hello RooneyMassara,

Know exactly how you feel after having 'invested' a lot of charity money and my own cash into Microsoft equipment I now very much regret making the decision many years ago not to use Apple Mac systems. Previous to MS, we/I used Commodore Amiga with Workbench as the operating system, never any problems.

What we MS users need now is some sort of representation-if enough individuals were to unite under a common cause, surely we could persuade MS to recognise us as people with a genuine complaint to justify a reply. Having said that, should I be lucky enough to win a few pounds on the lottery, I would ditch MS and go for Apples products, unfortunately not possible on my state pension.

I have same problem with both my Office & Home PCs when 8.1 update failed to install.  After a very long download & installation process I just received a message saying 8.1 had failed to install and the PC had reverted to Windows 8 - no reason given.  Tried the Microsoft support line but after going through all the options & long periods of on-hold music etc got through to an overseas call centre with a bad line and someone who could not understand/hear me.  The whole Microsoft operation seems very amateurish.  We have spent a lot of money on Microsoft products but now considering Apple Macs as I have enjoyed using iphone, ipod & ipad, Apple's product support is excellent.

 

Hi Martin,

 

I really appologize for the delay in responding to this thread. This issue is caused by a driver bug check during second boot while installing Windows 8.1. I request you to check if all the updates are installed on the computer via Windows Update before you start with the Windows 8.1 installation. It would be great if you can provide more information regarding this issue:

 

1)       What is the make and model of the computer?

2)       Do you have any external devices (except the mouse and the keyboard) connected to the computer?

3)       Are you using any third party security program installed on the computer?

 

You may try the following methods and check if that helps.

 

Method 1: Disconnect all the unnecessary external devices connected to the computer (except the mouse and the keyboard)

 

Please disconnect all the unnecessary external devices connected to the computer (except the mouse and the keyboard) and then check if you still face this issue while installing Windows 8.1. This is to check if the issue is caused by any external devices connected to the computer.

 

You may also try installing all the driver updates for all the devices installed on the computer and check if that resolves the issue. You may try the next methods and let’s know the result.

 

Method 2: Update the Device Drivers on the Computer.

---

Step 1: Check the Windows updates for any latest driver updates.

 

Check in Windows updates if any driver updates are available. If so, install the same and check if it helps.

 

a)       Press “Windows Logo” + “W” keys from the keyboard.

b)       Type “Updates” in the search bar and click on “Install optional updates” from the left pane.

c)       From the “Windows Update” window, click on “Check for Updates” on the top left corner, to receive a fresh list of updates and then install all the updates listed there.

 

For any issues while installing Windows Updates, you may also refer to this link:

 

Troubleshoot problems with installing updates

 

If no driver updates are available via Windows Update, then you may install them for all the devices on the computer from the Computer Manufacturer’s website.

 

Step 2: Update Driver Software from the Manufacturer’s website:

 

Go to the computer manufacturer’s website and search for the latest Windows 8 drivers available for all the devices on the computer and then install them by following the instructions given in the website.

 

Please get back to us with the troubleshooting results.

My 8.1 update failed to install on both my Office & Home PC's.  After a very long download & installation process I just received a message saying 8.1 had failed to install and the PC had reverted to Windows 8 - no reason given.  Tried the Microsoft support line but after going through all the options & long periods of on-hold music etc got through to an overseas call centre with a bad line and someone who could not understand/hear me.  The whole Microsoft operation seems very amateurish.  We have spent a lot of money on Microsoft products but now considering Apple Macs as I have enjoyed using iphone, ipod & ipad, Apple's product support is excellent.

Hello, I have an xps15 also, tried the update and it failed, would make it past windows splash screen but hangs there, it reverted back with the error code 0xc1900101-0x40017.  Have you tried again or are you just going to wait a few days and see if MS fixes?  My email is *** Email address is removed for privacy ***, thanks Ron

Same issue with Dell XPS 15. It's about one year old i7, 16GB, 512 ssd. It did all available updates but it still boots to blank. After a few restarts it rolls back to Win8. I have an open Dell support ticket. Dell spent 2hrs with me in chat support but only really helped me get up and running back on 8.