

Click on Choose what the power buttons do from the left pane.To Disable Fast Startup, Press Windows + R, type powercfg.cpl and click ok to open power options.We recommend once Disable the Fast startup Feature by following the steps below and check the problem is resolved or not. But sometimes this feature causes the issue, stuck push the running processes that result in This App is Preventing Shutdown. Windows 10 fast startup, by default, enabled that pauses the running processes in their existing state instead of closing them, so when the system resumes its operations it doesn’t have to re-initiate the programs from scratch, instead, it just restores the processes and resumes it from there. This is optional but sometimes it’s very helpful. Look for a Power troubleshooter, Select And Run the troubleshooter to check and fix if any power-related bug prevents windows from shutdown. Run Windows Power troubleshooter from Settings -> Update & Security -> Troubleshoot.

However, if you feel that no programs were running Still windows causing App is Preventing Shutdown/Restart. Technically, it is recommended to close all running programs before you initiate shutdown /reboot Windows PC.
