
Windows 10, build 1809 (still a bit unstable while using Windows, but works well ingame without performance-loss). Try both a clean install or rollback to these builds:

These builds works with or without clean-installs with Windows 10. I won't update past that build, until Forza Horizon 5 comes in the future, which will most definitely make sure that I won't play Horizon 4 anymore. Update 2021: A full reinstall of a a newer build than Windows 10 1909, also lets me play Forza - for the ones that consider doing it. It's not recommended to uninstall a big build-update containing several security and Windows-patches that are recommended to have on a PC, but what the heck: If that is what I must do to play Forza, I rather do that to be able to play.


Just wanted to let you all know that it was all a Xbox Game Bar-bug while using Windows 10 1909-build. One thing that fixed every game and loading crash or when alt-tabbing was to go into the task manager on my PC after launching the game and I had to go to Taskmanager -> Processes -> from here I had to end the task: Xbox Game Bar.Īfter I did that, I no longer have game crashes after loading my save, starting a multiplayer session or when alt-tabbing from the game. I see many Forza Horizon 4 threads or other games using Windows 10 and the support consultants tells people to uninstall the Windows 10 1909-build update/KB from peoples PC.
