Windows 11 keeps crashing randomly on multiple machines

Discussion in 'Windows Virtual Machine' started by MartinW16, Jan 20, 2026.

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  1. MartinW16

    MartinW16 Bit poster

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    Since a few weeks ago we have multiple Windows 11 installations randomly crashing and rebooting.
    All Macs are older iMac models with Intel CPU. We're running v26.1.2 (57293) on Tahoe.

    I attempted to do a repair install of Windows, but that throws an error during the last step (something went wrong...) and aborts.

    What can we do to find the cause of the problem and hopefully fix this?
     
  2. Trishna Oobeyram

    Trishna Oobeyram Staff Member

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    Hello @MartinW16
    We have created a support ticket to assist you.
    Please check your email for future communication.
    Regards,
     
  3. RichardA23

    RichardA23 Bit poster

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    Same with me - New behavior over the past 3-4 weeks. Very troubling!
    Running Parallels Desktop Version 26.2.2 (57373) on a 2019 MacBook Pro w/ plenty of disk space fully updated Windows OS (Pro, 25H2, OS Build 26200.7840)
    Will sometimes crash & reboot a couple times a day - no warning.
    Also have noticed the small Parallels icon with the double diagonal arrows that I use to switch views, suspend, etc. at the top of the mac desktop is intermittent - mostly gone. Have to right-click the Windows icon in the Dock to get the same menu choices.
     
  4. MartinW16

    MartinW16 Bit poster

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    Support told us to switch from Parallels hypervisor to Apple's. I can't tell yet if that helps.

    1. Shutdown any running virtual machine (Click on the "Actions" menu on top of the Mac menu bar > "Shutdown" OR if the virtual machine is suspended > Resume it first then shut it down)
    2. Right-click on the Parallels icon in the Dock > Control Center > Right-click on your Windows 11 virtual machine > Configure
    3. Select the "Hardware" tab > CPU & Memory > Advanced > Click on "Parallels" Hypervisor and change it to "Apple" > Close the Configuration Window
     

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