As such, it won’t be able to complete the checks and boot. This happens when some files are missing from the hard drive and the operating system can’t locate them.

A corrupted operating system is the most common problem.There are several reasons why the Mac computer can display a loading screen and cannot pass it. At the moment, all we can say is that this problem occurs as a side effect when the operating system finds an error.

Below are the detailed steps of all the things you must do and also explanations why you should use them. Learn how to solve it once for all and how you can continue using your computer once again. The fix does exist but it will take a few minutes of your time. Mac stuck on the loading screen is a common issue that can soccer due to several reasons.