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abbey7669 Author

Level 1

4 points

Backup disk is not available.

Time Machine says "disk is not available, try backing up again when disk is available"

Can I get some assistance with this?

My computer hasnt backed up since April.

MacBook Air 13″, macOS 10.13

Posted on Dec 12, 2021 4:41 AM

Top-ranking reply

BDAqua

Level 10

245,339 points

Posted on Dec 12, 2021 10:36 AM

Start with this...

Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes.

Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.

Does the drive show up in Finder or Disk |Utility?

View in context

Backup disk is not available.

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