Use Linux Mint Mate 17.3 and installed Ubuntu Mate 16.04 on my GF's. Have Peppermint Linux on a very low end 2008 era laptop. Also used Lubuntu, Xubuntu and Ubunntu on the same machine. Ubintu ran out of horsepower post 12.04. If you're more than a decade old I'd recommend Lubuntu or Linux Mint.