I have a Macbook Air with 121gb of storage on a SSD. I use iCloud and have approx 1.5TB of data in the cloud. I have clicked optimise storage and I now only have 8GB lefton my SSD, so not enough space to complete the latest iOS update.
I have read that optimise storage leaves a percentage of disk space free, however, it doesn't appear to have allowed enough!
If I un click optimise storage, it tries to download everything.
Is there anyway that I can keep all my files in the cloud and just use them there and not download any of them onto my HD?