> Windows 'fast boot' does work by saving some critical state on shutdown, but it's still a complete shutdown. Nope. The easy way to falsify this is to dual-b

> Windows 'fast boot' does work by saving some critical state on shutdown, but it's still a complete shutdown. Nope. The easy way to falsify this is to dual-boot. If you have Windows Fast Boot enabled, Linux will not be able to mount Windows's NTFS drives, because they are still mounted. This tells us the kernel is just hibernated, not stopped. This is one of my personal annoyances with systemd: if a drive in `/etc/fstab` isn't available, systemd waits for it to become available... forever. So if a drive is mounted (because another OS is hibernated), or it's changed UUID because it's been reformatted, or it's been deleted: your computer won't boot, because systemd is trapped in a retry loop. The easy way to disable fast boot is just to open an Admin Command Prompt and type: powercfg /h off This disables Hibernation. The `C:\HIBERFIL.SYS` file is deleted and Windows now will do a full shutdown and full boot every time... and when you boot into Linux, you can now mount the Windows drives. Note, with hibernation as opposed to suspend, you still see the BIOS screen.