New
#1
Make Windows 10 Bootloader Override Windows 7 Bootloader/GRUB
I'm trying to setup a tri-boot on a Dell Optiplex 745 (Windows 10, 7, & Ubuntu)and I can't get Windows 10 Boot Manager as the default boot menu (the blue screen boot options menu [1]: https://i.stack.imgur.com/iILBt.png., not black screen boot options menu) [2]: https://i.stack.imgur.com/afSpG.png. Just wondering which OS to install first. When I install Windows 10 first, then Ubuntu, it doesnt recognize Ubuntu and boots straight into Windows 10. If I install Ubuntu first, GRUB overrides Windows 10 Bootloader/Manager. If I install Windows 7 or try to tweak the boot menu using easybcd, it will show all options (2nd picture), but Ubuntu won't boot and gives some sort of grub error. Also, I cannot, after multiple times of reinstalling Windows 7 & 10, complete successfully the command bootrec.exe /fixboot (from either 7 or 10 reinstall disk) as access continues to be denied. And whenever I install Windows 7, it sets Windows 7 Boot Manager (2nd picture) as the default. I can see this from the command bcdedit (it will show that Windows 10 is the {default} identifier, but Windows 7 is always {current} identifier. How do I make Windows 10 the {default} and {current} Bootloader (1st picture) with all 3 OS's available to actually boot into?