How to Fix: VirtualBox Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154)

[Axeia]

If you get the error “Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154)”
Try starting it from a console ( VirtualBox, captalised V and B ).
Probably comes up with something like:
Wrong owner (0) of ‘/tmp/.vbox-username-ipc’.
Wrong owner (0) of ‘/tmp/.vbox-username-ipc’.

sudo rm -R /tmp/.vbox* to remove the files, and they’ll be recreated the next time you start virtualbox with the proper permissions.

Thought I’d share how to solve it as all the google results seem to spawn several pages before a solution is provided, granted one is even provided.
Bit too short for the how-to forum, so that’s why here in Applications.
(For other problems make sure you’ve added yourself to the vboxusers group)

[anika200]

@Axeia

If you get the error “Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154)”
Try starting it from a console ( VirtualBox, captalised V and B ).
Probably comes up with something like:
Wrong owner (0) of ‘/tmp/.vbox-username-ipc’.
Wrong owner (0) of ‘/tmp/.vbox-username-ipc’.

sudo rm -R /tmp/.vbox* to remove the files, and they’ll be recreated the next time you start virtualbox with the proper permissions.

Thought I’d share how to solve it as all the google results seem to spawn several pages before a solution is provided, granted one is even provided.
Bit too short for the how-to forum, so that’s why here in Applications.
(For other problems make sure you’ve added yourself to the vboxusers group)

Wow, Thank you so much. I finally found this thread which was the ONLY solution that worked for me after trying many found on google. Thanks for posting.

[jdmcdaniel3]

This was a very old message thread and Posted before the Virtualization forum was around, so I have moved it and happy you have found this solution.

Thank You,