If you have automatic restart enabled in Windows 11, your PC will restart every time it encounters a system failure. You can easily disable this future within the Windows 11 command prompt.

Startup Repair is a useful tool that can automatically diagnose and fix issues preventing your Windows PC from booting correctly.

If you see recently installed programs disappear after a restart on Windows PC, make sure you have installed it for all the users & then follow this guide to fix it.