Hi znovitske,
Thanks for raising your concern in Microsoft Community.
It sounds like you are encountering a problem when installing Hyper-V on Windows 11. This issue is more appropriate to be posted in Microsoft supported products on Q&A | Microsoft Docs since it's related to virtual machine. And you can click Q&A to post your question.
Thanks for your support and feel free to post back if you need further assistance. Wish you a happy new year.
Best Regards,
Lynn Sun | Microsoft Community Support Specialist
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