Time Machine has Excluded external drive I want to backup; grey-ed out and un-selectable.

The external drive I want to backup is grey-ed out and un-selectable. 

Is it not possible to backup this drive? Why?

It is a SanDisk Extreme Portable 1TB Model: SDSSDE61-1T00.

Does it have to be reformatted or something?

MacBook Pro 15″, macOS 12.6

Posted on Feb 24, 2023 08:03 PM

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Posted on Feb 24, 2023 08:08 PM

Sometimes you do need to reformat the external drive. Try this link if you need help.

Erase and reformat a storage device in Disk Utility on Mac - Apple Support


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Time Machine has Excluded external drive I want to backup; grey-ed out and un-selectable.

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