[RetiredTexasVet]

Buy an inexpensive external disk drive and a backup program. Once you reload your system or get a successful repair and it is running OK, turn off automatic system updates. Run a complete system backup at least once a month with a backup boot thumb drive. Run system updates manually from the control panel.

[Svartalfiar]

Run a complete system backup at least once a month with a backup boot thumb drive. Run system updates manually from the control panel.

One I've used before is Macrium Reflect Free. Been a while, but I think they offer the full suite free for personal use on one or two machines.