Can't install virtural box on window 7 professional

[bosco]

I keep getting an error message.

----------------------
Failed to create the VirtualBox object
The application will now terminate
Callee RC:
E_NOINTERFACE (0x80004002)
-----------------------------------------------

This happens regardless of what version I try to install.

Any solutions?

[mpack]

You don't get that error message when installing VirtualBox. That's an error message you get when a VM fails to run on a PC where the software has not been (properly) installed. If it really was during VBox installation it would be an MSI error.

Please clarify what you are doing?