time machine cannot back up
time machine stops and says that it cannot back up
time machine stops and says that it cannot back up
Here is Apple's guide on using Time Machine. Exactly what part of it is not working for you; please be detailed.
Back up your Mac with Time Machine - Apple Support
Here is Apple's guide on using Time Machine. Exactly what part of it is not working for you; please be detailed.
Back up your Mac with Time Machine - Apple Support
time machine cannot back up