MBR to GPT via MBR2GPT - have you done it?

Mistral · Jun 29, 2022

Just curious, since MBR2GPT seems to be the way if you want to change your partition without reinstalling Windows, do we have members here who have done it and can speak of the experience?

SpittinFax · Jun 29, 2022

I tried it but couldn't get it working. Guessing that you're trying to enable SAM and need to disable CSM, which in turn requires running Windows in UEFI mode and can only be done with a GPT drive installation? All that important stuff that AMD conveniently forgot to mention?

Yeah in the end I just got fed up and went with the good old fashioned wipe and reinstall of Windows.

Mistral · Jul 1, 2022

I see. Windows 10 predates SAM, what can you do?

Just gave MBR2GPT a try, worked fine. Seemed pretty simple, I imagine as long as you don't lose power it's pretty safe too.

Windows boots a fraction faster, but otherwise not much noticeable difference.

lowrider_05 · Jul 1, 2022

Yes done it for work on many older Laptops: "MBR2GPT /convert /allowfullos" if you want to run it in Windows in a Admin CMD window.

Shou Miko · Jul 1, 2022

lowrider_05 said:
Yes done it for work on many older Laptops: "MBR2GPT /convert /allowfullos" if you want to run it in Windows in a Admin CMD window.

I used it a couple of times myself and yes it works fine no issues to report.

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System Name	Aryzen / Sairikiki / Tesseract
Processor	5800x / i7 920@3.73 / 5800x
Motherboard	Steel Legend B450M / GB EX58-UDP4 / Steel Legend B550M
Cooling	Mugen 5 / Pure Rock / Glacier One 240
Memory	Corsair Something 16 / Corsair Something 12 / G.Skill 32
Video Card(s)	AMD 6800XT / AMD 6750XT / Sapphire 7800XT
Storage	Way too many drives...
Display(s)	LG 332GP850-B / Sony w800b / Sony X90J
Case	EVOLV X / Carbide 540 / Carbide 280x
Audio Device(s)	SB ZxR + GSP 500 / board / Denon X1700h + ELAC Uni-Fi 2 + Senn 6XX
Power Supply	Seasonic PRIME GX-750 / Corsair HX750 / Seasonic Focus PX-650
Mouse	G700 / none / G602
Keyboard	G910
Software	w11 64
Benchmark Scores	I don't play benchmarks...

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MBR to GPT via MBR2GPT - have you done it?

Mistral

SpittinFax

Mistral

lowrider_05

Shou Miko