Windows 10: [UNMOUNTABLE BOOT VOLUME] Error After Creating ext4 Partition with Disk Genius Windows 11 Pro

I encountered an error with stop code: UNMOUNTABLE BOOT VOLUME error code: 0xc0000225 after creating an ext4 partition using Disk Genius. I suspect the active partition might have been incorrectly set to the ext4 partition, causing Windows to fail booting as windows can't access that partition by its own.Is it possible to repair the boot configuration using Command Prompt within the Windows Recovery Environment?Additional information: * OS: Windows 11 Pro * Disk Management Tool Used: Disk Genius

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UNMOUNTABLE BOOT VOLUME error

Hi Andre,

The challenge that you're experiencing when you got the error, UNMOUNTABLE_BOOT_VOLUME,
is due to a damaged file system that failed to mount. It also means that sub-system in the machine failed to mount the boot volume. To isolate the issue, kindly answer the following questions:

• When did you first encounter the issue?
  
• What are the troubleshooting steps have you done so far?
• How did you upgrade the device to Windows 10?

You can also follow the steps that was shared by Michelle Her and
Billion Debbarma on these threads to troubleshoot the issue:

• Windows 10 Unmountable Boot Volume Error Message And Automatic Repair
• Unmountable_boot_volume -Windows 10
  

Hope this helps and let us know if it works.

 

How to fix error unmountable boot volume

Hi James,

It is possible that you received the error UNMOUNTABLE_BOOT_VOLUME due to a damaged file system which failed to mount. This error also means that sub-system on machine failed to mount the boot volume. To efficiently assist you, we'd like
to gather more information:

• Have you made any recent changes prior to this issue?
• What is the exact error message you received?
• What troubleshooting steps have you done so far?

Meanwhile, we suggest that you you follow the steps shared by Michelle Her and
Billion Debbarma on this threads below to troubleshoot your concern:

• Windows 10 Unmountable Boot Volume Error Message And Automatic Repair
• Unmountable_boot_volume -Windows 10
  

Keep us posted if you need additional help.

 

Unmountable Boot Volume

Unmountable boot volume usually means a bad hard drive. Booting the XP CD and running chkdsk will sometime bring the computer back to life for a while, but eventually the drive will die.