So, to install Windows 8, for example, you will need a file that will easily grow to several 10 GB in size. While VirtualBox itself is very lean (a typical installation will only need about 30 MB of hard disk space), the virtual machines will require fairly huge files on disk to represent their own hard disk storage. So you'll need that for the guest alone, plus the memory your operating system normally needs. Check the minimum RAM requirements of the guest operating system, they often will refuse to install if it is given less. So, if you want to run Windows 8.1 on Windows 7, you probably won't enjoy the experience much with less than 2 GB of RAM. Basically, you will need whatever your host operating system needs to run comfortably, plus the amount that the guest operating system needs. Depending on what guest operating systems you want to run, you will need at least 512 MB of RAM (but probably more, and the more the better). Any recent Intel or AMD processor should do. In order to run VirtualBox on your machine, you need: This page is for end users who are looking for information about how to download and run VirtualBox.

Virtualbox windows 10 support