MBG2GPT and WinRE issue

Megahertz said:

Why is drive 2 set as active? Did it once had Windows on it?

No idea! That's an external backup drive and has only ever been used as a backup!

I ran several MBR2GPT and they never failed and I never had to do anything!

What I would do.

Boot from USB and delete Partitions 3-4
Then create the EFI in partition 1

sel disk 0
sel par 1
format quick fs=fat32 label="System"
assign letter=S
set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b
gpt attributes=0X8000000000000000
exit
bcdboot C:\Windows /s S: /f UEFI

the rest is possible later

Megahertz said:

Did you created the Win 10 USB installation drive on it?

On drive 2? No - used that MCT tool straight to USB.

Megahertz said:

So my suggestion is to shutdown, set BIOS to boot as UEFI and boot from it.
Once booted, lets delete the System partition.

Thanks Megahertz - just to check - do you mean boot from C after the BIOS change? Or boot from the MCT USB?

Ok - it won’t shut down via the power menu - goes to the blue screen with ‘shutting down’ on it, goes black, and then goes back in to Windows! Shall I pull the plug??!