Why MBR2GPT can not discover OS partition? In response to a survey, the error could be attributable to corrupted BCD knowledge and inactive system partition on the onerous disk. Don’t fear. Right here we summarize some efficient fixes to the error.
Answer 1. Convert MBR to GPT through MiniTool Partition Wizard
In relation to changing MBR to GPT on Home windows, most customers could need to use MBR2GPT. However this software has some limitations and all the time runs into varied errors like “MBR2GPT cannot find OS partition for disk 0”.
Is there a substitute for MBR2GPT? After all, sure! MiniTool Partition Wizard can assist you exchange MBR to GPT with out knowledge loss simply and vice versa. It’s a skilled partition manager that boasts many highly effective options, equivalent to extending partitions, altering cluster dimension, rebuilding MBR, migrating OS, and so forth.
Right here’s find out how to convert MBR to GPT utilizing the software.
Step 1. Open the MiniTool software program to enter its foremost interface, choose your required disk, and click on on Convert MBR Disk to GPT Disk from the left motion panel.
Step 2. Click on on OK after which Apply to substantiate this modification.
Answer 2. Mark the System Partition as Energetic
Some customers from the solutions.microsoft.com discussion board reported that the “MBR2GPT failed to find OS partition” error could be solved by re-activating the system partition. Nevertheless, the Mark Partition as Energetic” choice is greyed out in Disk Administration.
On this case, you should use the free partition software program – MiniTool Partition Wizard to set a partition as energetic/inactive simply. Right here you’ll be able to set the system partition as energetic or mark Disk 0 Partition 1 as inactive.
Step 1. In the principle interface of the MiniTool software program, choose the partition that you just need to activate and click on on Set Motion from the left panel. Then click on on Sure to substantiate it.
Step 2. Click on on Apply to execute this modification. After that, you’ll be able to test if the MBR2GPT conversion failed error will get mounted.
Answer 3. Restore BCD
As mentioned above, corrupted or lacking BCD knowledge can also be answerable for you can’t discover OS partition in MBR2GPT. Let’s comply with the steps beneath to restore it.
Step 1. Press Win + R keys to open the Run field, kind cmd in it and press Ctrl + Shift + Enter to open the elevated Command Immediate window.
Step 2. Kind the next command and hit Enter to restore BCD.
bcdboot C:Home windows /s C:
Answer 4. Allow WinRE
Some others from the Microsoft discussion board have confirmed that enabling WinRE can do away with the “MBR2GPT cannot find OS partition for disk 0” error as properly. It might appear unusual however value attempting.
Step 1. Open the elevated Command Immediate window like Step 1 in Answer 3.
Step 2. Kind the next instructions so as and press Enter after each.
- reagentc /disable
- reagentc /allow
The right way to repair it if you happen to can not discover OS partition in MBR2GPT? In response to the above data, you must discover the only resolution is to make use of MiniTool Partition Wizard to transform MBR to GPT, proper? If different troubleshooting strategies can’t repair the MBR2GPT conversion failed error, the MiniTool software program is wholly value attempting.
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