Hello, skimaskedjak
Welcome to the Microsoft community.
Thank you for your feedback. Please what is the version of your computer? I need to confirm your problem. You can refer to the following link which may help you.
(SOLVED) MediaCreationTool22h2 - Error Code: 0x80072f8f - 0x20000 - Microsoft Community
I look forward to your feedback, which will help me locate your problem.
Best Regards,
Aaron| Microsoft Community Support Specialist