Seeing this startup disk notification on your MacBook® or iMac® can be alarming and worrisome-but never fear, there are plenty of options for users to try and free up space on your Mac hard drive. This notification indicates a lack of free storage on your Mac hard drive. Please delete some files.” The scary notification looks very similar to this: Mac® users everywhere dive into panic mode when that dreaded warning pops up: “Your startup disk is almost full.
