New
#11
If your Operating System becomes corrupt, that is the purpose of making a backup. To fix that.Just restore to a point before it became corrupt. An external hard drive is much cheaper than another computer for having a backup. Not many average users are going to buy 2 computers just to have a backup of their OS. The process of transferring files from 1 computer to another every day sounds like a serious pain. That is especially true if you get a virus and don't realize it yet. Now you will have 2 computers with the virus. I can do a backup and verify it in 9 minutes a couple times a week.
How many backup programs do you have on your computer? You don't remember which one you use? Any backup program will only recognize their own files. The backup files have the date they were created. You didn't create the recovery media? Don't blame backups or the program used.I say this out of experience. I had a system failure, had a compressed/encoded backup file on a separate drive, and couldn't remember when it was backed up, what software was used, etc. A total waste.
Backups are used regularly by everything from Industry to home users as an accepted method to recover from catastrophic events. I think you are just trying to be a contrarian. But, as @f14tomcat said, it's your computer, run it any way you want to.