Mike_Star wrote:
Time Machine is supposed to free up space on it's own. But I have this issue:
Time Machine couldn't complete the backup to "***"
Time Machine was only able to complete 12% of the backup because there is insufficient free space on the backup disk.
Ventura 13.2.1, USB, External SSD, APFS Encrypted
https://discussions.apple.com/content/attachment/5118d7cb-6bbf-4b64-b939-5b4ab429a6b6
old issue, new issue, what changed....
This is one indicator your back-up Drive is working in a state of failure— the resolve is replace the drive
if you just moved to a new macOS, or a new machine
there are changes that can be sorted moving forward via erase
if you are truly out of space and TM is refusing to clear space— the resolve is Erase and reformat a storage device in Disk Utility on Mac and start over.
Erase and reformat a storage device in Disk Utility on Mac - Apple Support