System Data taking 90GB on my Mac
Storage settings show System Data eating almost half my 256gb SSD. Emptied trash, deleted old iPhone backups. Barely moved. What is actually in there?
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1 Answer
irabyte
nine times out of ten that's Time Machine local snapshots. open Terminal and run tmutil listlocalsnapshots / and see how many come back. plugging the backup drive in and letting a full backup finish usually clears most of them. also look in ~/Library/Application Support/MobileSync/Backup for old iPhone backups, those can be huge.