I am trying to update my MacBook to new macOS Catalina. But my downloading had failed twice. Now I downloaded installer but I can't update because I have low disk space. Because when my download was failed 1 and 2 time my disk space is not clear. How to fix it? How to clean updates folder with ?


My update failled mid-way and is stuck. Spend 7 hours at Apple store. Seems to do with purgeable storage. Catalina will only install if it has enough free storage. Purgeable memory does not count. To turn purgable storage to free storage disable iCloud and Time Machine backups among other techniques.


I had the same problem and solved booting the system in secure mode (hold shift during boot).


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