[SOLVED] Cannot upgrade VirtualBox

[fubofo]

Hi guys,

I have a VirtualBox install on my WinXP machine at work.
Recently I have come across all manner of issues, which always seem to pop up the error:

Code: Select all

Failed to access the USB subsystem.

Could not load the Host USB Proxy......etc.

Result Code: 
E_FAIL (0x00004005)
Component: 
Host
Interface: 
IHost {dab4a2b8-c735-4f08-94fc-9bec84182e2f}
Callee: 
IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91}

Also I cannot install any new version of VirtualBox (upgrade) - it simply fails and rolls back without any error message. Extension Packs also will not upgrade.
I have not tried to uninstall / reinstall as I don't want to lose my VMs (can they be kept??)

Could anyone point me in the right direction here? What further info is needed?

Thanks.

[mpack]

Uninstalling the software does not lose your VMs.

Do so, then make sure you "Run as administrator" when you reinstall - and make sure you are installing it for the correct user account. Then install the extension pack, as USB 2.0 devices will not work without it.

[fubofo]

Just tried and it won't uninstall either - no error report, just proceeds to uninstall then rolls back and fails

[fubofo]

Just wondering if anybody has any further ideas about rectifying this?

Perhaps manually deleting the files and all associated registry keys or something?

[fubofo]

I managed to get the problem resolved myself.

I downloaded the old installer for my version (4.1.10) and selected to reinsall/repair. The I ran the updated installer and everything is working again

https://www.virtualbox.org/wiki/Download_Old_Builds

[mpack]

Very good, thanks for letting us know how to fix this problem.