Linux is an open-source operating system that’s completely free to use. … Replacing your Windows 7 with Linux is one of your smartest options yet. Almost any computer running Linux will operate faster and be more secure than the same computer running Windows.

Should I replace Windows with Linux or dual boot?

Always install Linux after Windows

If you do want to dual-boot, the most important time-honored piece of advice is to install Linux on your system after Windows is already installed. So, if you have an empty hard drive, install Windows first, then Linux.

Should I replace Windows with Ubuntu?

YES! Ubuntu CAN replace windows. It’s very good operating system that supports pretty much all hardware Windows OS does (unless the device is very specific and drivers were only ever made for Windows, see below).