Fast startup is a feature that was first implemented in Windows 8 as Fast Boot. It was carried over to Windows 10, and it remains an option in Windows 11. It's designed to shave seconds off of your PC ...

First, right-click on the Start icon and select Run. When the Run dialogue box pops up, type shell:appsfolder and select ...

Fast Startup is failing due to underlying system inconsistencies, such as corrupted hibernation files, misconfigured BIOS settings, or outdated drivers, which disrupt the boot optimization process.