Windows 11 VM Refuses to Boot Due to Critical Error

[ronfrye]

Version

7.2.4

Host OS Type

Windows

Host OS name + version

Windows 10 Pro Version 22H2 Installed on ‎8/‎17/‎2020 OS Build 19045.6456

Host Architecture

x86

Guest OS Type

Windows

Guest Architecture

x86

Guest OS name + version

Windows 11

Component

Unspecified

What happened?

Windows 11 has been working just fine as a virtual machine in Vbox until today (10/24/2025. Now it does not open, a message stating there has been a critical error. The "automatic repair" function did not work. The only option was to shut it down.

[VBox.log](https://github.com/user-attachments/files/23137156/VBox.log)

How can we reproduce this?

You would have to be at my computer to reproduce this.

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.

[AlexanderEichner]

The VBox.log is not accessible, github throws a 404.

[ronfrye]

Alexander...

I've resolved the problem, but do not remember how I did it. (I'm 79 years old and no longer have a short term or long term memory. Sorry about that.

By the way, before adding this response, the text in this box said, "Use Markdown for your comments." I do not know what that means.

Ronald Frye