two similar computers, 1 MBR, 1 UEFI -- copy OS to EFI

Hi folks
Have a sony VAIO and HP laptop -- almost same hardware OK newer i5 processor on HP and USB3 support but about 95% of hardware is similar.

Instead of clean install on the HP machine (it's activated with digital license so no piracy involved) I'd like to clone the Sony W10 to the HP machine.

I've done quite a few of these between much more different hardware machines e.g from AMD with Radeon graphics to Intel with Intel graphics and usually all work --BUT that's from EFI---EFI machines.

Is there an easy way to copy from MBR OS to EFI OS without having to re-install everything. I have the usual tools - Macrium, KYHI, Partition managers etc but can't seem to find any decent method of doing this.

Help here appreciated

(another reason for wanting to do this - have a few apps and accounts where I've totally lost passwords and activation keys so would get into a mess if I re-installed on target machine. Sony will then be wiped and donated to a local charity).

thanks everybody

Cheers
jimbo

@cereberus method is one way of doing it. It's also dead easy to make your own EFI System Partition. Booting from a Macrium Reflect rescue disk, open the command prompt.
diskpart
list disk
select disk # <-replace # with the actual number of the new computer's internal drive, should be 0
clean
convert gpt
create pri part size=100
format fs=fat32 quick
assign letter=T
exit
exit

Then restore only the C: drive partition from the image to the remainder of the drive. Note which drive letter it gets assigned. We will say it gets assigned drive letter E:. Go back to command prompt:

bcdboot E:\Windows /s T: /f UEFI
exit

That should be it.

cereberus said:

Yeah dead easy - done it load of times.

1) make Macrium image backup of mbr drive to a usb hard drive

2) Boot from Macrium Rescue drive on UEFI pc, and select command prompt in corner

3) run diskpart and type following

diskpart

list disk

select disk n (n is number of drive - usually 0 if only drive)

clean

convert mbr

exit

exit

3) Restore image to EUFI pc

4) boot from a Windows 10 installation drive and run mbr2gpt

Restrictions - mbr install must only have primary partitions an no logical partitions

MBR2GPT | Microsoft Docs

Convert Windows 10 from Legacy BIOS to UEFI without Data Loss | Windows 10 Tutorials

5) If you have Macrium Reflect Home, I recommend you boot from MR again and run the redeploy option as well, and may need to run the "fix windows boot problems" option as well (can run this from Free as well)

Hi there
thanks
working an absolute treat

Drivers etc aren't an issue I'm surprised people ever mention that any more as W10 is great at finding those -- and in this instance about 95% of components are identical !!! just in the HP slightly newer -- and I've done EFI-->EFI from widly dissimilar systems.

Update

Machine just booted up fine -- fast SSD's this stuff doesn't take long

Thanks.

@NavyLCDR - thanks also for that suggestion - always great to have more than 1 solution -- but already fixed now so marking this thread as solved

Cheers
jimbo