System data

Hello aleguizzo08,

Welcome to Apple Support Communities. We understand your concern with system files taking up space on your Mac, and we'd be happy to provide some guidance.

To get started, please try the steps in the following link to free up space on your Mac:

Free up storage space on your Mac

Also, check out these helpful links:

See used and available storage space on your Mac

Find and delete files on your Mac

We hope this information is useful. Kind regards.

It seems to me that the reply does not answer the question, and I have the same problem.

System Data, in this example, is taking up 112 GB, while the categories above comprise a far lower total.

Maybe this has something to do with old backups, old system files, external storage????

Thanks.

PS: above are screenshots of my MacBook Pro SSD.