[SOLVED] How UEFI boot both GPT and MBR drives?

[blue_rays]

Hi there,
I have a UEFI win 10 on my GPT SSD and a non UEFI win 10 and a linux (kubuntu) on my MBR HDD.
I want to be able to boot them all. If I don't change HDD's partition table to GPT, Is there any way to move boot files of my non UEFI win 10 and kubuntu to the EFI partition?

https://imgur.com/p0HlHla

View: https://imgur.com/p0HlHla


On my EFI partition (located on my SSD), there are 3 folders named Boot, Microsoft, and rEFInd. I've added rEFInd myself as a boot manager, but it just finds Win 10 (UEFI) and Kubuntu (non UEFI).
Also I used Easy BCD to add the other non-uefi windows to boot menu of my win 10 but I could not add the linux. Also it makes boot process slow to have other OS'es in boot list of windows.

Is there any way to move boot files of my non UEFI win 10 and kubuntu to the EFI partition? Or how can I add the other win 10 to the rEFInd?

 

[Colif]

Easy BCD is best way to add the MBR install of Win 10

Or you could try - https://superuser.com/questions/1392316/how-to-add-windows-10-to-grub-boot-loader
and add windows to linux. I don't know linux all that well.