Before proceeding with any troubleshooting steps, confirm that your PC is frozen or hung because sometimes a Windows update can take more than 3 hours to complete.
In this event, instead of fixing the problem, you might even create a new problem.
To avoid these issues, repeatedly press the number lock button on your keyboard and see the number lock LED light turning on and off. If this is a PC, you will get a challenging drive activity light that is blinking most of the time,
If the number lock and challenging drive activity LED keep blinking, your PC is not frozen or stuck, and some progress is still happening in the background.
If the number lock or challenging drive activity LED is not blinking, your device has frozen or stuck, whatever you call it. You can perform the following troubleshooting steps in these scenarios to fix the Windows Update Stuck issues.