Which build you have installed?
There is two thing you can try:
- Delete WindowsSelfHost -key from registry
- Do in-place repeir install
Delete WindowsSelfHost -key (See screenshot below)
- Open open regedit (push Win key and type regedit).
- Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost
- On left panel right click that key and delete it.
- Close regedit and restart (may require two restart)
- Check Windows insider program settings to see if it's OK now
In-place repair install (if you are in buikd 22621)
- Download ISO fron here Download Windows 11 (microsoft.com)
- Mount ISO (double click or right click and selec tmount
- On ne virtual disk run setup.exe to start in-place repair