How can I clear 394GB of system data on MacBook Air running Sonoma 14.7.6?
My son's recently purchased second hand MacBook air has a storage problem. It has 499.96 gb total storage, with 420.26 gb being used of which 394.3 is system data!!
How do I remove some of this, as it is making the machine difficult to use for music and photos.
It is using sonoma 14.7.6.
[Re-Titled by Moderator]
Original Title: Remove system data MacBook air
MacBook Air 13″, macOS 15.5