NS_ERROR_FAILURE on launch

Discussions about using Windows guests in VirtualBox.
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oriza
Posts: 2
Joined: 6. Aug 2025, 02:45

NS_ERROR_FAILURE on launch

Post by oriza »

I am running Windows guest on my Ubuntu host.
VirtualBox version 7.0.16 (I know this is an old version but my Ubuntu version is 24.04LTS and won't run the latest version of VB. and I don't want to deal with upgrading my whole system right now.)

Recently I have gotten the error message:
Something is not available or not working properly. (VERR_NOT_AVAILABLE).
Result Code:
NS_ERROR_FAILURE (0X80004005)
Component:
ConsoleWrap
Interface:
IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}

And the VM does not launch.

I tried uninstalling and reinstalling VirtualBox twice and am still getting the error.

I have attached a ZIP of the VirtualBox log.
Attachments
windowsvm_.log
(129.95 KiB) Downloaded 29 times
windowsvm.zip
(21.34 KiB) Downloaded 27 times
klaus
Oracle Corporation
Posts: 2024
Joined: 10. May 2007, 14:57

Re: NS_ERROR_FAILURE on launch

Post by klaus »

The line in the log file pointing at the cause is
00:00:01.875232 HM: Failed to enable, error VERR_NOT_AVAILABLE
This hints that your kernel probably has the KVM modules loaded which prevent this version of VirtualBox from working. The Linux kernel 6.17 is too new for VirtualBox 7.0.16.

You could run a current version of VirtualBox by installing the Ubuntu 24.04 package from www.virtualbox.org (either using the repository on virtualbox.org or by downloading and installing the package manually), after removing the Ubuntu-provided VirtualBox package.
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