MacOS – How to fix VirtualBox that can’t open since Mountain Lion upgrade


I've a lot of softwares on my Mac, so, I've forgot to check some of them before upgrading MacOS to Mountain Lion (from Lion)

Since Mountain Lion, VirtualBox throw this message when I try to open it:

You can't open the application "" because it is not supported on the type of Mac

What is the better (not the simpler but really the better) way to update VirtualBox without breaking anything?

Can I install the latest version over the old one?
Or must I uninstall completely the old one and reinstall it form scratch?

Or anything else?

Which are the problems I can expect?

Thanks in advance for your help.

[EDIT] in reply to the comment:

The details declare version: 4.1.8

For the Mac, it's a

15 inch, Late 2011

Processor 2.4 GHz Intel Core i7
Memory 8 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6770M 1024 MB
Software OS X 10.8 (12A269)

Best Answer

There should be no problems upgrading to the latest version of VirtualBox. You can just download and run the installer to upgrade, no additional uninstall steps are required.

You can also update automatically from the "VirtualBox" menu, by choosing "Check for Updates...". It should find a newer version, and prompt to download and install.