Windows 10: Need to change boot loader from external HDD to Internal SSD

So today I used WinToUsb to install another version of windows on to my external hard drive and formatted as GPT. I wanted a dual boot system. Installation went smooth and I was able to boot from my external hard drive that has Windows 10 Enterprise, the SSD has Pro.

Later on after I rebooted I could not boot from my original operating system on my SSD even if I change the boot order in my BIOS. I have exhausted my self in looking for a solution, including using EasyBCD / MiniTool Partition Wizard Free 12.1.

Using EasyBCD get access back into my original OS by adding a new entry, however once I load back into windows 10 pro on my SSD, IF my External HDD is NOT plugged in via USB or removed my whole PC crashes and that's because I think the main bootloader is on the external HDD.


WinVer 1909 (OS Build 18363.1237) (External HDD)












DISK 1 WDC = My main SSD with all my stuff on it
DISK 2 970 EVO= Nvme that I installed somewhile ago for more storage, I tried to create a EFI system partition and transfer the bootloader my self to the 970 evo but I failed.
DISK 3= The Windows to USB that I made and now my bootloader has somehow transfered to this external drive and I can not boot my PC unless this external drive is plugged in!

If anyone can please help or steer me in the right direction I would really appreciate it, I'm not an expert or even intermediate at solving things like this, but I tried to give as much info as possible.

Thank you!

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Basically I can't use my system anymore unless my external hdd wintousb system is plugged in via usb *cry
if it's not plugged in and I go to bios I am just told to insert repair disk and I don't have one and If I did I wouldn't want to wipe all my data

:)

 

Need to change boot loader from external HDD to Internal SSD




it failed, i'm not sure why.. also now showing up here

 

Need to change boot loader from external HDD to Internal SSD




also failed

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wait! I changed the letter to X in the mini partition wizard and did the same command again and used X instead of W and I got this

now what should I do?

 

Need to change boot loader from external HDD to Internal SSD



















Here are some more images, I am not sure if this will help but please take a look at my BIOS
1st Image: USB Hard Drive is Unplugged, but can only boot to my WDC SSD IF 970EVO is Primary.
2nd Image: 970 Disabled and WDC is the primary boot option, when I try to boot it takes me to the bluescreen and can't do anything besides go back into BIOS
3rd Image: Bluescreen if 970 evo disabled (usb hard drive also not plugged in)
4th Image: 970 in Primary slot, WDC disabled , (usb hard drive also not plugged in)- Can't boot into 970 2nd OS unless hard drive is plugged in, BUT can boot into WDC OS even though its disabled in BIOS.
5th Image: What happens when I try to boot into 970 evo without the usb external hard drive plugged in.
Last Image: the ASMT USB hard drive plugged in, can only boot to either OS (Original/2nd) as long as the usb drive is plugged in, I can boot into both OS.

I'd like to just boot from my WDC. Hopefully this helps and I just didn't confuse you guys more.

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I'm a little confused, why would I need to delete the 256MB system EFI partition and then recreate it if its already healthy? I haven't changed anything or touched anything in my WDC drive at all

Also when I tried to add a letter to my 970 EVO's 257 efi system partition in hopes of moving the boot loader over with easy BCD , the letter shows up in my drive directory (not there now) and easy bcd can't move the bootloader cause I get an error that's in one of the screenshots.





this is my drive directory from my computer