Windows 10 1803 Update Stuck at 42%

I always recommend upgrading offline, it works better than Windows Update Assistant or Windows Update.

Please be advised some users are reporting issues with the Windows 10 1803 update. Make sure you backup before attempting to upgrade:

http://answers.microsoft.com/en-us/windows/wiki...

How to block it if you don't want to upgrade:
https://www.groovypost.com/howto/block-windows-...

What is the make and model of your computer?

Have you checked the manufacturers website to determine compatibility?
Check this List to Determine if Your Computer is Compatible with the Windows 10 Fall Creators Update 1803
https://answers.microsoft.com/en-us/windows/wik...

perform the following tasks:
12 Things You Should Do Before Installing Windows 10 Creators Update (Version 1803)
https://www.groovypost.com/howto/prepare-comput...


How to download official Windows 10 ISO files
http://answers.microsoft.com/en-us/windows/wiki...

How to Upgrade to Windows 10 Creators Update version 1803 using ISO File from Versions 1507, 1511, 1607, 1703 or 1709
https://answers.microsoft.com/en-us/windows/wik...

I also have a similar problem, tried all of the suggestions above, still occurring.

Same problem, mine just hang (completely freezing at 52%)

my notebook's a samsung Ativ Book 8 870Z5E-X01PT with dual graphs

Same problem. Sticks at 42% and have to perform rollback by switching on and off. Is there a log anywhere that provides the specific reason? All I get is a general error code 0xc1900101 which could mean many things. I have tried everything in terms of uninstalling programs, removing usbs, the windows upgrade pathway. 

I have the same problem on my brand-new computer, except I'm stuck at 43%. 

Same problem here - on three different computers.  I've tried all the solutions suggested above but all still hang at 42 or 43%.  I'm seeing a pattern in mine too - We have 7 computers here in the house and the only ones that hang have AMD graphics chips, the 4 others that updated without a problem have NVIDIA chips.  Any solutions would be appreciated (other than changing the graphics cards!)   Or is Microsoft simply discriminating against AMD?

Yes, I suspect the AMD graphics, especially if they are a bit dated as mine is (HD 6 series). I tried various things: rolling back to earlier versions, updating through Microsoft, updating through AMD. All with no success. I got a bit desperate and went into msconfig to do a basic startup without loading all the drivers. However, my computer got completely stuck at startup - I think because it was also trying to do the new update. After several power shutdowns and restarts, I was presented with a troubleshooting screen but, for some reason, when this screen appeared, my USB connections failed and I could not click on the options. In the end, I used the windows installation media tool on another computer to download the newest version onto a usb stick and install it from scratch (fresh install - update would not work). This has worked and everything seems to be fine now. https://www.microsoft.com/en-gb/software-download/windows10 

Maybe the problem will be ironed out in the coming weeks but I suspect those of us with older AMD graphics cards may need to go down the fresh install route (unless there are third party solutions).

What would be very useful after a failed install is to get a detailed log that pops up on the desktop that shows where the problem lies. The error code I was getting could have meant many things.

 

nVidia chip here, unfortunately, so that kinda kills that theory.

Same - NVidia GTX1070, Intel i7-6700k @ 4 GHz, Gigabyte Z170X-UD5 TH motherboard.  Hard freezes up at 42%.  53 GB free on C:

I was stuck in this loop for over a week. It is not a particular graphics card, it seems to be a bug related to having 2 different graphics systems in the computer.

The solution isn't easy, especially in a laptop with dual graphics. For my desktop, I did the following:

- Uninstalled nvidia drivers completely. First uninstalled all nvidia software using 'Progrmas & Features" in Control panel

- Next I went to Device manager, uninstalled the nvidia devices - both under Display adapter and in the Audio area. I made sure to select the check box to "remove drivers" as well.

- Next, I shut down the computer and physically removed the nvidia card, and plugged my monitor into the computer's built in display port.

- Restarted computer, allowed it to install the Intel display drivers.

- Ran the update for 1803 again, and it installed perfectly.

- After the update completed, I then used Device Manager to delete the Intel display and "High Definition Audio' devices. Shut down computer

- Next I re-inserted my high performance Nvidia card, reconnected my monitor as before, and restarted the computer.

- After Windows installed drivers I used Device Manager to scan for updated drivers, and once again Windows found updated drivers for the display adapter. They installed fine, and all is working great now.

For a laptop you certainly can't physically unplug a display card.  However, I would suggest something like the following (not having a laptop of this type to test it on, sorry):

- uninstall the "switchable graphics" software from 'Apps and Features.'

- uninstall the higher performance display adapter in Device manager and uninstall drivers.

- restart the computer, but be careful to go into your BIOS setup on startup - don't let Windows start or it will re-detect hardware. 

- Go to a section called "Integrated Peripherals" or something similar, and look for the graphics options - turn off the higher-powered graphics option, and leave only the Intel integrated graphics.  Hopefully your BIOS will have this option - but they may not all give this ability to disable it!

- After the high performance graphics hardware is disabled, F10 to save the BIOS settings and restart.  Check Device Manager to see if both display adapters are showing - if so, you are still stuck.  Hopefully only the Intel will show.

- Try the update.  If it works - Great!  Just go back to your BIOS and re-enable the high powered graphics adapter and restart again. Re-install the software from the computer manufacturer for switching display adapters.

Hopefully this will fix it!

And I must add, come on Microsoft!  Why didn't this problem occur in any of my 4 computers where I was running the insider editions?  Somebody missed something when the final version was released!!!