sometimes you may have to reset your device on a "ungraceful" way which leads to the point the "Automatic Repair" / "Troubleshoot" menu will show up as we know from the good old Windows 10 x86 days.
There are two versions to solve this:
Using your Windows 10 PC
- Enable the USB Mass-Storage mode by choosing "Developer Menu" in the boot menu on your device
- Open up the command line on your PC by using the TaskManager => File => Run => "cmd" with some elevation
- Type: fsutil repair set <Letter Of Your MainOS Partiion> 0
This will come later