Best Way to Fix “MBR2GPT Cannot Find OS Partition” in Windows 10

When I try to convert my Win10 boot disk from MBR to GPT partition table, it keeps failing with the "Cannot find OS Partition(s) for disk 0". How to fix this? If you also meet the same situation then don’t miss this video.

-----------------------------------------------------------
✅ 【mbr2gpt Cannot Find OS Partition】
⏰ 0:00 Start

----------------------------------------------------------
✅ 【Detail】
1. Input diskpart in the search box and run it, run the following commands to find out the OS partition and the system reserved partition and assign them a drive letter.
▸diskpart
▸select disk 0: the operating system disk
▸list partition
▸select partition 2: because here partition 2 is the partition where the Windows OS is installed
▸assign drive letter= w (for example)
▸select partition 1: because here partition 1 is the system-reserved partition
▸assign drive letter= b (for example)
2. Run the command to take a further look into the Windows system partition to check whether there is a boot folder inside. If there are no required boot folders, then run the command to check the system-reserved partition.
3. After you find the boot folder in either the system partition or system reserved partition, you need to run the command to invoke the bcdedit tool and point it to the boot configuration data store that you have found.
4. Look out for the invalid entries now. There are many hints for bad or invalid entries. For example, you might find “unknown” in some entries. They can be the remnant of a previous Windows installation or caused by some vicious software.
5. Copy the identifier of the bad entry. Then, point bcdedit to the store again and ask it to delete the bad entry using the copied identifier.
6. Then you can try to run the command again to check whether all are OK now.

Refer to the above solution you can solve the “cannot find os partitions for disk 0” in MBR2GPT.exe tool. However, it is too complicated and difficult to follow for most users. So, here we would like to share an easier tool to help you finish the MBR and GPT conversion. That is AOMEI Partition Assistant Professional. Compared with MBR2GPT, it can finish the MBR to GPT conversion on an intuitive interface, easy to follow for both experts and newbies; It is able to work well on all editions of Windows; It supports converting both system disk and non-system disk from MBR to GPT without deleting any data on the disk. Before that please make sure that your device supports UEFI and back up your vital data.
1. Install and run AOMEI Partition Assistant Professional. Right-click the system disk and choose “Convert to GPT Disk”.
2. In the next window, click “OK” to confirm your operation.
3. Back to the main interface, click on “Apply” to commit the pending operation.

----------------------------------------------------------
Best Way to Fix “MBR2GPT Cannot Find OS Partition” in Windows 10
mbr2gpt cannot find os partition,mbr2gpt exe cannot find os,win10 cannot find os partition for disk 0,cannot find os partitions for disk 0 mbr2gpt,mbr2gpt cannot find os partition for disk 0,mbr to gpt,convert mbr disk to gpt,how to convert disk from mbr to gpt without losing data,how to convert mbr to gpt without data loss in windows 11,how to convert mbr to gpt

#mbr2gpt#convermbrdisktogpt

[KiraKunMusic]

I've been looking for a solution all day yesterday, today I found this video and this is the ONLY video that helped. So thank you.

[WiKiTWoNKa]

This told me nothing. How do I fix the MBR on my win 10 disk. ADATA SU800 SSD

My windows keeps getting stuck at the dots twirling for ever and the /fixboot command give me "Access is denied" I am not sure maybe I have the BIOS settings wrong in my DELL Optiplex 7010

[carlj]

bro the exit not working in disk and how oyu can run x Sources?

[frotto]

I cannot change letter for the system partition, I'm getting error that states
"Virtual Disk Service error: It is not allowed to assign or remove a drive letter for the current boot volume or paging volume." Any help? :)