I'm going to assume that this is a UEFI capable computer. Having two independent Windows bootloader configurations that can be called from Grub independently should be very close to what you are looking for. I remember that it was possible on legacy setups to directly boot the Windows kernel from Grub (I may be wrong here) but I haven't been able to do this on UEFI setups. It's as if GRUB simply doesn't detect it.Īlso, I'll put this in the question so that people see it - I have tried using boot-repair, however, it has NOT helped any.Īs far as I understood your question you have two different Windows installations on one or more harddrives and you don't want the Windows loader to get in the way or managing both Windows installations. However, I STILL have not managed to get Windows 10 to appear in GRUB. However, I then later deleted Windows 10 from the list of OSes in msconfig, and it seems to have stayed deleted. Can anyone help with this?ĮDIT 2: After removing Windows 10 from the Windows bootloader with EasyBCD, it seemed that, after a few reboots, it would continually unhide itself and Windows 10 would reappear. However, I still do not know how to add Windows to the GRUB OS list.

How can I disable the Windows bootloader and add a Windows 10 option to GRUB?ĮDIT: Someone has answered telling me to disable the Windows bootloader.

Apparently Microsoft misunderstood the concept of a bootloader and decided that that meant 'boot practically the entire system before actually showing the bootloader'. (However, by this point, the computer has already loaded the kernel and all. However, if I select the Windows 8 option, I then get sent to the Windows bootloader, where it then gives me options to boot either Windows 8 or Windows 10. If I select Ubuntu, the computer boots into Ubuntu. Now, when I boot the computer, I first see a GRUB prompt (I already un-hid the grub prompt 'cuz I like it that way) with Windows 8 and Ubuntu options. Note that I made a separate 255MB ext2 partition for /boot. I then installed Ubuntu alongside both Windows 8 and 10. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows 10.

Legacy easybcd make partition bootable