Fast startup is a feature first implemented in Windows 8 and carried over to Windows 10 that provides a faster boot time when starting up your PC. It’s a handy feature and one that most people use without even knowing, but there are others who disable it immediately when they get their hands on a new PC.
Let’s take a look at exactly how fast startup works, why you might want to enable or disable it, and how to do so.
https://www.windowscentral.com/how-disable-windows-10-fast-startup
Ed Bott : Temporarily bypass the fast startup feature
One of the most important performance improvements in Windows 10 is the fast startup feature, which uses the hibernation file to load Windows significantly faster than a “cold” start. When you use the Shut Down option, the fast startup feature closes all running apps, signs out of all user sessions, and then saves an image of the Windows kernel and all necessary drivers. The next time you start, Windows loads that image into memory, shaving precious seconds off the normal start-up time.
Most of the time, this shortcut works just fine. But it can cause Windows to get confused under some circumstances, especially when software installers are involved. In that case, you can easily bypass the fast startup option.
