Dual boot to single boot+boot sector

My current system (PC1) has two physical SSD's with GPT format and it is set up as a dual boot: Windows 10 Pro (Disk 0), Windows 10 Home (Disk 1). I want to remove physical Disk 1 and install it in another PC (PC2) so that I'll end up with two single boot systems.
1) How do I convert the dual boot to single boot in PC1 (Disk 0)
2) How do I make Disk 1 bootable in PC2? (there's no boot sector)
Screenshot of my current dual boot system below

That doesn't look professional at all!
So quick and dirty with EFI at the end:
1. Assign drive letter to Disk 1
2. Shrink the partition
3. Create a EFI-Partition and assign a temp drive letter
4. Run bcdboot
5. insert into PC2

Berton said:

What I see in your image is Disk 0 has 2 partitions with C: being the only boot/system drive. The first partition is required. All the Win10 and Win11 computers I've worked on had 3 to 5 partitions on the boot drive.

Disk 1 shows only 1 partition and does not show as being bootable, just a simple partition and has no drive letter assigned, File Explorer probably doesn't see it.

Well, the way it is now works, I can dual boot to either Disk 0 or Disk 1 from the boot menu that shows up at every restart. The way I ended up with this configuration is described in the link I included in my first post. Also, there is no drive letter for Disk 1 because the screenshot was taken from Disk Management when using the OS in Disk 0 and I removed the drive letter of Disk 1 on purpose to hide it from File Explorer.

Megahertz said:

1)Make a EFI partition on disk 1 and load the boot manager

Boot from Windows 10 Pro (drive 0),
Open a CMD window as administrator and type:

diskpart
select disk 1
list part (take note of Win 10 home partition number n)
select part n (replace n with the number found above)
assign letter=D
shrink desired=100
create part EFI
format quick FS=fat32 label=EFI
assign letter=W
exit
bcdboot D:\Windows /s W: /f UEFI
diskpart
select vol W
remove letter=W
exit

2)Remove dual boot option from drive 0
open MSConfig - Boot tab - remove the drive 1 boot option

Below is a screenshot of MSConfig/Boot, so should I delete the line highlighted in blue?

antares said:

should I delete the line highlighted in blue?

You'd have a hard time deleting the other...

Volume Z said:

You'd have a hard time deleting the other...

I could, but it would render the system unbootable I guess.

Not in msconfig.

But this is the easy part anyway. It just makes more sense to render the system unbootable msconfig lets you.

You may want to start with adding an EFI System Partition to Disk 1.