Ubuntu (Xenial Xerus) 16.04
- Free (GPL)
The best free operating system out there ... run an ever increasing number of Windows programs Ubuntu is a community developed operating system that is perfect for laptops, desktops and servers ...
- PROS: Completely free operating system, Very quick and easy to use, Easy Windows installer, Ubuntu One syncs with mobile devices
- CONS: Can be difficult to install external components, Tricky to get used to after using Windows