If you have one of several Ubisoft games installed on your Windows 11 machine and haven’t upgraded to version 24H2 yet, your update may come later than expected. Microsoft has put a compatibility hold on devices with these games installed. For those that have already had the update installed, you may have some issues with the game itself including unresponsive, black screen, or other anomalies.

The affected games are:

Assassin’s Creed Valhalla
Assassin’s Creed Origins
Assassin’s Creed Odyssey
Star Wars Outlaws
Avatar: Frontiers of Pandora

Note: Ubisoft released a temporary mitigation for Star Wars Outlaws to prevent the game from failing and stop responding. You might still experience some performance issues.

To safeguard your Windows update experience, we have applied a compatibility hold on devices with these games installed. These devices will not be offered to install Windows 11, version 24H2 via the Windows Update release channel. IT administrators using Windows Update for Business reports can check these issues using the following safeguard IDs: 54437462 and 54580160.

Important: We recommend that you do not attempt to manually update to version 24H2 using the Windows 11 Installation Assistant or the media creation tool until this issue has been resolved.

Workaround: If the game stops responding to your commands and you cannot exit the game as usual, use Task Manager to close the application. Follow the steps below:

Open Task Manager. This can be accomplished by pressing Ctrl + Shift + Esc on your keyboard. Alternatively, you can right-click on the Start button and select Task Manager from the menu.
In the Task Manager window, look for your game in the Processes tab. It might be listed under the name of the game or the game launcher.
Click on the game’s name to highlight it. Then, click the End Task button at the bottom right of the window. This will close the game.
Next steps: Ubisoft and Microsoft are working on a resolution and will provide more information when it is available.