
So the answer depends on the hardware of the computer and what you want to do in the virtual system. (But you can install VirtualBox in Windows, and run Ubuntu in a virtual machine.) If your Windows system is installed by the vendor (OEM licence), I think it will not work in a virtual machine. Microsoft considers a virtual machine as a separate computer, which means that you need a separate licence for it. The extra layer between the operating system and the hardware will make the system slower, and there will be less memory (RAM) available compared to running directly (booted into the hardware machine). The ability to run particular tasks (with program packages and peripheral devices) is usually good in a virtual machine. Performance in VirtualBox versus dual boot Now you have Steam that can play AAA games so you can fully convert to ubuntu :) Works fine for games like pop, Mario, house of dead, etc. Non-gaming perspective: it is a charm running any application or software you want, it will run without any problem. With my experience I hated running windows in virtual box and playing games. My suggestion would be to have a dual boot. If you want to run assassin's creed, witcher you need good graphics and lot of ram. Your graphic card should be well compatible to the Ubuntu(or any other distro). I would say minimum ram should be 8 gb if you want to play games like prince of Persia sands of time kind of games. (How much Ram memory, G memory and process capability.) Yes you can run, there are lot of constraints it depends on your system config.
