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A critical error has occurred while running the virtual machine

PostPosted: 26. May 2022, 16:24
by Cesave
Hi all,

I normally use the VirtualBox with Windows 11 64-bit(host). Today when trying to open a Ubuntu 64-bit virtual machine I got the error as below and can't open it anymore. I also have two other virtual machines (Windows 7, 32-bit) and another Ubuntu 64-bit (with GUI), they work perfectly fine. It's just my "server" Virtual Machine (no GUI) that I can't open. Some weeks ago it worked perfectly fine, I didn't change or install anything since then, so I'm surprised it doesn't work. I have the latest VirtualBox version installed, and I also tried it with the prior older version and it was exactly the same error

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a critical error has occurred while running the virtual machine and the machine execution has been stopped.


I tried several ways to fix it, like increasing/decreasing the RAM, but it didn't work. Virtualization is enabled on my host, by the way. I have an Acer Aspire A515-43 laptop with an AMD Ryzen 5 3500U processor. I also do not have any antivirus software installed, apart from Windows Defender.

Attached you can find the log record. Hope someone can help me :)

Re: A critical error has occurred while running the virtual machine

PostPosted: 26. May 2022, 16:55
by scottgus1
Your little guru meditated on "VERR_NEM_IPE_3", which doesn't come up much. However, Hyper-V is enabled. If that's a new development, it may be getting in the way. See HMR3Init: Attempting fall back to NEM (Hyper-V is active).

Alternatively try adding a processor to the VM. it only has one now, and some folks get restored operation when there's two.

Re: A critical error has occurred while running the virtual machine

PostPosted: 26. May 2022, 17:03
by Cesave
I have deinstalled Docker Desktop as I thought it may have gotten in the way (vmmem process was consuming a lot of RAM), and I assigned another processor to the Virtual Machine, and it works! Thank you so much, you're my hero. Have a good day :D

Re: A critical error has occurred while running the virtual machine

PostPosted: 26. May 2022, 17:20
by scottgus1
Docker does it. It uses Hyper-V.

Glad you're up and running!