How to make room for Time Machine?
Time Machine tells me the disk is full ("Backup Failed. There isn't enough space on "TM".
I notice that when I open Time Machine, the latest screen is from two years ago!!!
I do have an external disk, set up (I thought) for Time Machine and Super Duper (an alternate back up).
I have looked in my files 'size' but do not find any even as large as 1 GB.
Here's my set up. What do I do?
MacBook Air 13″, 10.15