Windows 11 version 25H2 Download error - 0x80246019

Question

Windows 11 version 25H2 Download error - 0x80246019

Nadun Jayasekara 20

I am currently using windows 11 23H2 version and I have attempted to install the 24H2 version several times through the windows update in settings. But after failing all of those attempts, I gave up on 24H2. And now the 25H2 version showed up. I cleared some space on the C drive and now have 43.8 GB free. I downloaded the update and restarted to install the update. But halfway through, it said, " Undoing changes made to your computer " and stops the update. And after trying to download it again, a download error showed up with code 0x80246019. How can I fix this?

Edition - Windows 11 Home Single Language
OS build - 22631.5909 Screenshot 2025-11-09 195114

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Answer 1

DaveM121 928.6K Independent Advisor

The most successful method to install version 25H2 is to use the Windows 11 ISO.

43.8 GB should be enough space for the upgrade, but please run disk cleanup first to remove any temporary files from previous attempts to install the upgrade.

Please ensure you download the ISO in the same language as you use for the Windows UI, follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.

Click this link:

https://www.microsoft.com/software-download/windows11

to download the Windows 11 ISO

When the ISO file completes downloading

Disconnect from the Internet

Disconnect all external devices with the exception of a mouse or keyboard.

Temporarily disable any 3rd party Anti-virus you may have installed

Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.

Very Important - ensure you select the option to keep your files and apps.

Nadun Jayasekara 20 Reputation points

2025-11-10T03:25:48.9933333+00:00

This is the thing I need to download right? And do I need a USB for this?
DaveM121 928.6K Reputation points Independent Advisor

2025-11-10T06:35:21.4866667+00:00

Sorry, I was offline.

Yes, that is the correct download, you so not need a USB, the ISO will download to your Downloads folder, then please follow the steps.
Nadun Jayasekara 20 Reputation points

2025-11-10T08:30:52.7233333+00:00

Do I need to do a mount thing by right clicking on the ISO? Or should I just click it and follow the instructions? And, I have another question! When restarting my laptop, after the "Restarting" text shows up and the screen turns off, I have to press a key to start the laptop again. Shouldn't it start automatically? And that problem shows up during updates that require restarting several times as well.