Windows 10: Can't unmount in win 10

Hello! I've mounted iso image with win 10's integrated feature and after mount there were error message (something about unsupported format of the image), but somehow the image was mounted and i were able to install program from it. After that i unmounted image but drive is still there in the Computer folder and i'm unable to delete the iso file (it says file used by another process), what about drive - there is option to unmount but nothing happens then i click on it. Reboot doesn't help. So, maybe there is a way using cmd to unmount that drive or some other ways you know about? I'd be glad if you tell me

:)

 

Windows 10 shutdown doesn't unmount despite......

Hi,

Thank you for the update and I apologize for the late response.

I appreciate if you could answer few questions to narrow down to the issue.

• 
  How exactly you are trying to unmount the drive. Is it through Command prompt or from Disk management?
  
• 
  What exactly happens when you try to unmount?
  
• 
  Did you receive any error message while trying to unmount?
  

I suggest you to try the steps given below and check if it helps.

Please close all the Windows before trying the steps.

• 
  Open Disk management.
  
• 
  Right-click the mounted drive that you want to remove, and then click
  Change Drive Letter and Paths.
  
• 
  Click Remove, and then click Yes.
  

Hope the information helps. Let us know if you need further assistance. We will be happy to help.

Thank you.

 

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 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.