Looks like my organization wants to manage my background picture. But I'm a local admin, so let's see if we can still change that background picture. When I go to Setting > Personalization > Background, I see the message: "Some of these settings are managed by your organization." If you are an admin, you might be able to (temporarily) override the wallpaper, by editing your registry and triggering a refresh of the wallpaper. If you can, you can automate it using PowerShell.
The code is a companion of the blog How to bypass company wallpaper as local admin on Windows 11.
Execute ./Init.ps1 to set things up. It will install the ./ChangeWallpaper.ps1 and
setup a refresh task.
Do the following:
git clone --no-checkout https://github.com/KeesCBakker/keestalkstech-dotnet-gallery.git
cd keestalkstech-dotnet-gallery
git sparse-checkout init
git sparse-checkout set --no-cone 8.bypass-company-wallpaper
git checkout main