You can solve the Windows 10 stuck on the screen problem by booting into clean boot sate. You can long-press on the power button of the computer until the screen goes black and then restart your computer to check whether this problem occurs again. Sometimes it is only a one-time problem that the computer stuck on the Signing out screen, so you only need to force the computer to shut down and restart the computer to solve the problem.

Note: Some of these methods require an administrator account.