Oracle VirtualBox is a free open-source software in which you can install multiple operating systems on your main operating system. Such as, you can install different versions of Linux Operating System and different versions of Windows in your main Windows 10 Operating System. Oracle VirtualBox for Windows Operating System can be downloaded from VirtualBox Downloads section
If you install Oracle Virtual Box, you don’t need to Uninstall your existing (Windows 10) operating system and can install & use different (Linux / Mac) operating system on your existing operating (Windows 10).
After downloading Oracle VirtualBox, double click on the .exe file and choose the default options.
After the successful installation of VirtualBox, VirtualBox startup screen will be empty. We can add a new operating system as a virtual machine by click on the New icon.