Unable to Stop virtualbox kernel modules

[Perryg]

What does "lsmod | grep vb" tell you when run from a host terminal?

Also where do you or did you get your VirtualBox install from. Previous and now.

[WildWeasel]

There was no response to lsmod | grep vb
Thank you,
WildWeasel

[Perryg]

OK and the second part of my question?

[WildWeasel]

Oops!

Here's the line from sources.list:
deb http://download.virtualbox.org/virtualbox/debian jessie contrib

WildWeasel

[Perryg]

There may be some corruption in dkms or apt. If you have already removed the previous one and still get the "it is already installed" I would clean dkms and apt then see if it installs. You might also try to install by downloading the binary and using dpkg to install it.