Hi Jan, welcome to the Linux Mint forums
Thanks for joining the forums! Not wanting to bust your expectations, but running in VirtualBox is different from running on real hardware. Suggest before you do a partition install, you retest all your hardware is working from the Live session. It may be that some things in VirtualBox were working because of Windows having the drivers for it. Hopefully it will all work out-of-the-box, but give it a test
Be sure also to check out the Community
website (ideas, tutorials, and hardware and software reviews), and the Cinnamon Spices
website for adding themes, applets and extensions to Cinnamon (and check out the Cinnamon Extras
package, which will install a lot of these for your automatically). If you haven't installed Cinnamon, see here
the most recent update for a teaser.
You can also chat in real-time with other Linux Mint users. In the Mint Menu, in the Internet section, start the application XChat IRC. You will automatically get connected to #linuxmint-chat for general chat and #linuxmint-help for support with other Linux Mint users.