Is It Possible to Run More Than One Operating System on the Same Computer?

While most PCs have a single operating system (OS) built-in, it’s also possible to run two operating systems on one computer at the same time. The process is known as dual-booting, and it allows users to switch between operating systems depending on the tasks and programs they’re working with.

Can I run Windows 7 and Windows 10 on the same computer?

You can dual boot both Windows 7 and 10, by installing Windows on different partitions.

Can I install 3 OS on PC?

2 Answers. Yes it is possible to have 3 operating systems on one machine. Since you already have Windows and Ubuntu dual boot, you probably have grub boot menu, where you choose between ubuntu and windows, if you install Kali, you should just get another entry in boot menu.