Remove Gnu GRUB and achieve a 10 on the diff drive that isn't showing up after installing Windows 11.
Remove Gnu GRUB and achieve a 10 on the diff drive that isn't showing up after installing Windows 11.
Before installing Ubuntu on my SSD and later moving to Windows 11 on a faster SSD, I had Windows 10 on an HDD. After deleting the Ubuntu partition (which was a mistake), I upgraded to Windows 11 on SSD and Windows 11 on HDD. I didn’t use Windows 10 for long, but I got tired of its slow performance on the HDD. In the BIOS I relocated the M.2 drive (it’s just empty, no bootloader) so it would boot into Windows 11. When I removed the HDD from the boot, it said no OS found. I believe my bootloader is still on the HDD. I’m still having issues with GRUB being present there.
I believe the bootloader doesn't show a Win10 installation option.
Get the installation media for Windows 10 or 11 and run the Startup Repair tool. https://www.groovypost.com/howto/fix-win...r-bootrec/ Refer to "Fix Windows 10 Winload.exe Using the Command Prompt" steps.