In Pictures: Computing advice that can stand the t...
Back everything up
Never get caught with just one copy of anything that you want to keep. Always back up your data, and then back up your backups. Consider backing up both to an external drive and to a cloud storage service. It’s a good idea to keep separate system and data partitions—back up your data partition daily, and back up your system partition (Windows as well as your installed programs) at least quarterly.
In Pictures: Computing advice that can stand the test of time