If you installed Endless & Windows dual boot and you encounter the
can not load image error when starting Windows, you can try to start Windows from the firmware boot menu as follows:
Enter the firmware boot menu by turning off your computer, turning it on, and immediately pressing a certain key. The key is different for different computers – it is usually F2, F12, or Del, and there may be instructions shown on screen when the computer starts up.
Select the Windows Boot Manager from the boot menu. It may look something like this:
To avoid the issue going forward, you are advised to uninstall Endless OS, and then reinstall the latest version.
This problem appears to be caused by bugs in some EFI firmware, and was resolved in Endless OS 3.1.0 which included a newer version of GRUB to fix this problem. Users who install new versions of Endless OS should not encounter this problem.