Computers have come a long way since the beige boxes of old, but even with speeds measured in gigahertz and gigabytes per second, they still involve some occasional waiting. If you're tired of solving Rubik's Cubes while you wait for your computer to boot, here are a few ways to speed up the process.
Windows 10 has a feature called Fast Startup that does exactly what it sounds like, and this is an obvious first stop in your quest. Essentially, this is a sort of halfway mode between hibernating and shutting down. It won't save your open applications, like hibernation will, but the under-the-hood OS will go into hibernation mode, helping you start up with a clean state faster.
Rebooting is unaffected, though, so if you run into problems with Windows Update or getting into your BIOS, you may have to restart your PC to perform those tasks rather than shutting down.
On many machines, this may be enabled by default, but if you ever turned it off—or if for some reason it wasn't enabled on the desktop you built yourself—you can flip the switch pretty easily.