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Unable to mount VHDs or ISO files RRS feed

  • Question

  • Everything was working then suddenly!

    I cannot mount any ISO or VHDX. I keep getting the "unable to mount" or "Access denied error"

    This applies for ISO/VHDX files I just created or older ones. over the network or local on my computer. even in Safe Mode

    Here's what I tried so far,

    • Create a VM with same patch level as my production workstation, works perfectly on the VM :(
    • Checked the sparse file issue
    • Attached the VHD using Disk Manager, it appears and I can even format the volumes, but can't access them in File Explorer
    • Tried accessing through PowerShell, not working.

    Please I can't afford a clean installation now now. PLEASE HELP!


    Please remember to mark the replies as answers if they help.

    Monday, October 9, 2017 3:03 PM

Answers

  • Hi,

    This issue occurred recently and tried accessing through PowerShell, not working. If you install some updates recently, you could uninstall them on View Installed Updates – Control Panel to check.

    Also you could copy the file to other localization, then mount to check.

    If the issue still insists, we could perform a system restore to recover the machine to a previous normal point if there is available restore point.

    Hope it will be helpful to you


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Eric0502 Tuesday, October 10, 2017 8:37 AM
    • Marked as answer by Willy Moselhy Tuesday, October 10, 2017 8:39 AM
    Tuesday, October 10, 2017 6:36 AM
  • Turns out someone had mistakenly installed some device security application on my PC over the weekend which screwed everything!

    Uninstalling fixed the issue right away.

    #ChangeManagement #YouWasted2DaysOfMyLife!


    Please remember to mark the replies as answers if they help.

    • Proposed as answer by Eric0502 Tuesday, October 10, 2017 8:38 AM
    • Marked as answer by Willy Moselhy Tuesday, October 10, 2017 8:39 AM
    Tuesday, October 10, 2017 8:30 AM

All replies

  • Hi,

    This issue occurred recently and tried accessing through PowerShell, not working. If you install some updates recently, you could uninstall them on View Installed Updates – Control Panel to check.

    Also you could copy the file to other localization, then mount to check.

    If the issue still insists, we could perform a system restore to recover the machine to a previous normal point if there is available restore point.

    Hope it will be helpful to you


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Eric0502 Tuesday, October 10, 2017 8:37 AM
    • Marked as answer by Willy Moselhy Tuesday, October 10, 2017 8:39 AM
    Tuesday, October 10, 2017 6:36 AM
  • Turns out someone had mistakenly installed some device security application on my PC over the weekend which screwed everything!

    Uninstalling fixed the issue right away.

    #ChangeManagement #YouWasted2DaysOfMyLife!


    Please remember to mark the replies as answers if they help.

    • Proposed as answer by Eric0502 Tuesday, October 10, 2017 8:38 AM
    • Marked as answer by Willy Moselhy Tuesday, October 10, 2017 8:39 AM
    Tuesday, October 10, 2017 8:30 AM
  • Hi,

    Glad to hear that you have found a solution and thank you for sharing it here, it will be helpful to other community members who have same questions.

    Best regards,

    Carl


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, October 10, 2017 8:39 AM