Windows 10: Reverting to single boot Windows 10 drive from dual boot Windows 10 & 11 drive

I took a drive with Windows 10 and cloned it. I then copied that cloned OS onto a new dive and setup a dual boot with Windows 11. When I boot up, I get the OS choice screen Widows 10 and Windows 11. All is working fine, although when I select Windows 10 it goes immediately to the login screen. When I select windows 11 it reboots and then goes to the login screen, but that fine as it's been working without any issues for over a year. I now want to take the original Windows 10 drive and put it back into this laptop and take out the dual boot drive. When I do that what can I expect? Will it boot

:)

 

Windows 10 boot drive

Is Windows 10 also limited to a max of 3Tb for a boot drive?

 

Windows 10 boot drive

Why do u even want a HDD/SSD that's 3TB for a operation system?

 

New Secondary Drive Causes Boot Failure Windows 10

Sounds to me like there are service partitions on the second drive that contains your boot loader. That would explain why it works when you revert back to 7 (which restores the scheme, not to mention I have personally had windows 7 put the boot-loader on a separate HDD) it works and when you upgrade to 10 it still works until you wipe the second drive.