Resolution 1. Convert MBR to GPT by way of MiniTool Partition WizardHow to Repair MBR2GPT Can not Discover OS Partition? [4 Solutions]

Why MBR2GPT can not discover OS partition? In line with a survey, the error could be brought on by corrupted BCD knowledge and inactive system partition on the laborious disk. Don’t fear. Right here we summarize some efficient fixes to the error.

In terms of changing MBR to GPT on Home windows, most customers could wish to use MBR2GPT. However this instrument has some limitations and all the time runs into varied errors like “MBR2GPT cannot find OS partition for disk 0”.

Is there an alternative choice to MBR2GPT? After all, sure! MiniTool Partition Wizard may also help you change MBR to GPT with out knowledge loss simply and vice versa. It’s a skilled partition manager that boasts many highly effective options, corresponding to extending partitions, altering cluster measurement, rebuilding MBR, migrating OS, and so forth.

Right here’s convert MBR to GPT utilizing the instrument.

Step 1. Open the MiniTool software program to enter its fundamental 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.

Resolution 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. Nonetheless, the Mark Partition as Energetic” choice is greyed out in Disk Administration.

On this case, you should utilize the free partition software program – MiniTool Partition Wizard to set a partition as energetic/inactive simply. Right here you may 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 wish 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 may examine if the MBR2GPT conversion failed error will get mounted.

Resolution 3. Restore BCD

As mentioned above, corrupted or lacking BCD knowledge can also be accountable for you can not 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, sort 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:

Resolution 4. Allow WinRE

Some others from the Microsoft discussion board have confirmed that enabling WinRE can eliminate the “MBR2GPT cannot find OS partition for disk 0” error as effectively. It could appear unusual however price making an attempt.

Step 1. Open the elevated Command Immediate window like Step 1 in Resolution 3.

Step 2. Kind the next instructions so as and press Enter after every one.

• reagentc /disable
• reagentc /allow

Methods to repair it in case you can not discover OS partition in MBR2GPT? In line with the above info, it is best to 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 price making an attempt.