Some machines automatically reset the UEFI boot order back to Windows. My Acer Switch 12 is one of these. So you might have to access the UEFI boot selector on power up (Mine is the F12 key) in order to select Bliss OS again.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service