If you do manage to change anything on the disk while in a dual-booted OS, it can cause corruption.įinally, as your PC never shuts down, you may find it harder to access BIOS. Some users report that it locks their hard disk, meaning that you may find the Windows drive inaccessible if you have a second OS installed on a different drive. Instead, you’ll have to restart your PC, which may not be convenient. The side-effect of that fast boot is that it’ll never truly switch off and some patch installation requires a full shutdown to perform operations. Microsoft itself also admits that Windows 10 updates may not be installed if you have fast startup enabled. Admittedly, it should be less than other hibernation modes, but it’s still a drain if you’re struggling.
For starters, it’ll probably increase the size of hyberfil.sys, a large file that can take up a lot of room if you have a tiny SSD. Though it’s unlikely fast startup will seriously harm your computer, there are a few reasons to disable it. Windows 10 will only use fast startup if the bios or uefi firmware supports fast booting and the feature is turned on there. Unlike regular sleep or hibernation, it logs you off and closes your applications before creating the file, but your PC still isn’t truly ‘off’. In contrast, hybrid boot loads a previously saved hibernation file into memory which already contains the kernel image and drivers from your last boot.