External hard drive big enough to hold more than the entire memory of the computer. Keep everything you find valuable at least, or better yet back up the entire computer on there and update it regularly. Leave it unplugged from the computer between updates.
In other words, an offline backup of everything on your main computer.
External hard drive big enough to hold more than the entire memory of the computer. Keep everything you find valuable at least, or better yet back up the entire computer on there and update it regularly. Leave it unplugged from the computer between updates.
In other words, an offline backup of everything on your main computer.
Follow the 3-2-1 rule: 3 copies, 2 different mediums (second HDD + thumb drive, DVD-R, tape if you’re nerdy, etc) and 1 offsite (cloud, VPN tunnel to someone else’s NAS, etc)