Time Machine -- On or Off

[Keukasmallie]

I connect my MBP to a My Book external drive and run Time Machine about once a week. Should I leave TM running when I don't have the external drive connected?

Thanks in advance for the info!

 

[miles01110]

Hardly matters. It won't run the backup if it can't find the designated TM drive.

 

[Macman45]

Yes

I connect my MBP to a My Book external drive and run Time Machine about once a week. Should I leave TM running when I don't have the external drive connected?

Thanks in advance for the info!

If only to remind you to backup.