Hi : ) !!! I can't use VirtualBox with Yosimite !!!

[Iggi]

Hi,

I use a 13" MacBook Pro with VirtualBox version 4.1.12
The VirtualBox has Windows in it. Due to a recent
update to the operating system, OS X, from 10.6.8
to 10.10 I am unable to use the VirtualBox and all
the applications I had running inside of it.

If anyone could throw some light into this situation,
as well as the time that it could take to solve this,
I would be very grateful.

Thank you in advance, kind regards,

igmolinav : ) !!!

P.S. This is the first time I post. If there is something
wrong with my post, please let me know.

[ChipMcK]

Since Mountain Lion, Apple made some 'under the cover' changes and one change is how VirtualBox is started.

Suggestion:
1. Download v4.1.12 to access/start the UnInstall tool - when you click on the .dmg file, the tool is in lower right corner.
2. Download v4.3.12 or higher and install that version - remember the Extension pack.

Best