Here's how to deal with iTunes' corrupted or incompatible backup error

Apple just launched the new iPhone 8 and a lot of older iPhone buyers are upgrading to it. If you are a sensible person, you would have backed up your old iPhone to your computer using iTunes (let's be real, none of us are paying Apple for more iCloud storage for cloud backup). But when you get your shiny new iPhone 8 (or any of the other iPhones that are still on sale) and try to restore from your old back, your iTunes throws this in your face. The problem is here that iTunes is an even bigger pile of trash than what we already thought it was. Fortunately, your backup is still...