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#31
You are using Partition Wizard as installed in the PC, again.
YOU NEED TO USE THE BOOTABLE CD.
Boot from PW Boot CD.
- How to make a PW Bootable USB without professional edition.
- How to boot from PW Bootable CD/USB.
- How to Convert MBR disk to GPT using PW.
Dont forget to have your windows installer ready before doing it.
I built my new UEFI computer two weeks ago. The SSD from my old computer was MBR. I could not get it to convert to GPT with the operating system on it.
I tried booting from MiniTool Partition Wizard flash drive and got the same results as you. I tried creating a backup image with Macrium Reflect, then converting the disk to GPT, then restoring the backup. No luck. So I ended up converting the blank SSD to GPT, booting from Windows 10 UEFI flash drive and doing a clean install.
MiniTool Partition Wizard did convert my storage only hard drive to GPT without any data loss.
Many a times. Here is the first time, for myself.
When a partition is running the system, it is not accessible for this operation. Bootable CD does it without any problem.
Glad you got it to work. Wouldn't work for me. What step was I doing wrong? Bios set for UEFI booting. Initially tried to boot from flash drive created from MiniTool Partition Wizard Free ISO. It would boot up to the point just before loading MiniTool but then freeze, I think incompatible graphics card - but that flash drive would boot on my other computers all the way into MiniTool. Booted from Kyhi's Recovery PE flash drive which contains MiniTool Partition Wizard Pro. Attempted to convert SSD to GPT and got the same results as kmint.
Windows 10 Recovery Tools - Bootable Rescue Disk - Windows 10 Forums
First time:
It was Legacy BIOS setup disabling UEFI. Disks was MBR, containing Logical partitions too.
PW bootable USB was made with UUI. Booted from it, Selected the disks one by one, converted them to GPT, applied.
Set the BIOS to UEFI, booted the windows installer as UEFI (using boot menu), installed Windows. It automatically created the MSR partition, and I was sure that it is done.
Later times (at least 10-12 times for friends and colleagues. They got new boards but kept old HDDs):
BIOS set to UEFI by default (new boards). UEFI Bootable PW created with Rufus. Converted the disks to GPT. Ran windows installer as UEFI. All set.
Well...that happens to be what kmint is trying to do in this thread. Convert an MBR disk with an operating Windows 10 installed on it to GPT for use on an UEFI system. So you haven't previously done what we are attempting to do in this thread. What you have done is converted disks to GPT and THEN installed Windows 10 on them after the conversion.