Windows 10: Upgrade Assistant From 1809 to 1903 Stuck at 27%

Greetings

I haven't gotten the Feature Update notification in Update and Security, so I decided to download the Upgrade Assistant to do the update manually.

I ran the download assistant and got 3 green check marks. The update seemed to download without incident. The installation then began after the system went to the blank blue screen. I got a notification that the install would take about 90 minutes and the machine would restart several times. OK.

I came back 2 hours later and the update was stuck at 27%. I restarted the machine and restored an image taken just prior to the update.

Thinking I was, perhaps a bit hasty, I downloaded the assistant again and ran it again. The update downloaded and installation appeared to start. I went to bed. After I got up about 6 hours later, I checked and the update was stuck at 27%. I again restored a pre-update image.

Here are some details. Maybe I should have put these at the top of the post *Confused

-am upgrading from 1809. Have downloaded and installed all available updates. Build is 17763.529. Latest versions of drivers available from Dell are installed (I did notice that certain driver updates were suggested for certain devices, but I couldn't find the suggested driver versions)

-Machine is an XPS 9550 attached to a Dell D16 Thunderbolt dock with a 240W power supply. The connection to the dock is a cable from the internal Thunderbolt port

-the internal drive is a 512GB NVMe M.2

-processor is i7 6700HQ

-32GB RAM

-there are 2 external drives attached to USB ports (one for backup and one for data). The data drive is attached to an internal USB port. The backup drive is attached to the Dell dock

-there are 2 MIDI controllers connected to the Thunderbolt dock. Also attached to the dock is a unified receiver for my mouse and keyboard. Finally, the USB cable from the monitor is attached to the dock

-I use an external monitor attached to an internal HDMI port. As mentioned above, it is attached to the Dell dock. There is an ILok dongle attached to one of the ports on the back of the monitor

-there is an audio interface attached to an internal USB port

Please forgive the rather pedantic detail, but I wanted to make sure you guys had all the info so that you could respond with foreknowledge if you choose to do so.

So any ideas? Any quick adjustments? Can I alter my physical configuration and try again? Disconnect everything, attach the original power supply and redo? Or should I just take a pass and wait til it shows up in Update and Security? If I wait, will I still have the same issues? Lots of questions and any help would be most appreciated.

Thanks and Happy Memorial Day to my American cousins (from the wilds of northern Alberta)

Graham

:)

 

Windows 10 upgrade assistant stuck at 99%

The problem is caused by the Windows 7 updates.

Before using the Windows 10 Upgrade Assistant, perform these steps:

• set Windows 7 updates to "Never install updates".
  
• Stop the update service by right clicking on the command prompt, and choose "Run as administrator".
  
• Type
  
  
  It should say: "Windows update service is stopping....windows update service is stopped."
  
  
  
  

After completing the above steps, start the Windows 10 Upgrade assistant, and it should complete.

 

Windows 10 upgrade assistant stuck at 99%

Here is what I've learnt about upgrading to Windows 10, in the past few days.

Media Creation Tool

The good thing is that the upgrade completes smoothly once the download has completed.

The bad thing is that it doesn't resume interrupted downloads. The download is over 3GB which is almost 3x the amount downloaded by UpgradeAssistant.

Common Problems<br>
Once interrupted (esp. crashed or rebooted) you won't be able to launch the tool again without manually deleting the $Windows.BT and $Windows.~WS folders first. However, in order to delete these folders you'll need to use Process Explorer (from sysinternals) and forcefully close all open handles to files in these folders. Search for "$Windows." and close every handle that you find.

In my case, after each interruption (I had four) it would add 3.02GB to the download - basically start downloading +1 BITSXYZ.tmp files. With 5 downloads of over 15GB I had to say goodbye to this method as nothing I did could reset the tool to its initial state.

Don't use this method unless you have a reliable power-source and good internet.

Upgrade Assistant App

Very good at resuming broken downloads and it downloads only what is needed for your system therefore a much faster method. The downside is that the upgrade isn't a smooth process.

Common Problems<br>
Upgrade will get stuck at 99% and there doesn't seem to be a single solution that works for everyone. First, its better to resolve missing driver issues before upgrading (as suggested by other answers). Here is what I did to get past 99%.

1. Let it run for sufficiently long time say 3 hours.
   
2. Set startup type for the windows service: "Windows Update" to "manual" for the duration of the upgrade, this will prevent it restarting itself when you perform the next step.
   
3. Stop the windows service: "Windows Update" and wait a couple of minutes
   
4. If this doesn't help start the service again.
   
5. Use process-explorer to kill SetupHost.exe that is a child of WindowsUpgradeAssistantApp.exe.
   
6. Wait for the assistant to report "Something went wrong," and use the "Try Again" option. This should repeat the usual download, verify and install cycle except that at about 45% a blue interface will popup.
   

The new popup UI will start in "Getting Updates," phase and believe it or not there are far more reported incidents of that getting stuck. To resolve it:

1. Stop "Windows Update" service
   
2. Clear all contents of "C:\Windows\SoftwareDistribution"
   
3. Start the service again (if needed).
   

This should hopefully unblock the tool, but it will come back to the "Getting Updates" state again. Give it some time and if it gets stuck again, follow Step 1 and 3-4.

Once past this point the "real upgrade" would begin and hopefully that would be a smooth process.

 

update to 1903

No, 1809 is not a pre-requisite for 1903

If you're interested in diagnosing the current upgrade issue, please let us know