No matter what the reason for the startup disk missing on Mac, there are ways that we can attempt to fix it and get it working again.

🚫 Circle with a line through it: this means that your Mac contains an operating system but it’s not one that your Mac can use.

This can be due to a corrupted operating system meaning that there is an error in the code that is causing it to not work or you might have a loose connection causing a hardware component to not connect inside your Mac.

❓ If you see a question mark: Your Mac no longer has a startup disk available or it doesn’t contain a working Mac operating system.

Some of the most common reasons that you might experience a hard drive failure would be the following: However, even with these reliable storage devices you can still experience a hard drive failure and have no startup disk on Mac.

When you buy a Mac today, you’re going to get an internal SSD hard drive which is a very reliable storage unit with no moving parts. Why Your Startup Disk Might No Longer Be Working Correctly Let’s take a look into why your MacBook startup disk may not be working. Without it, your Mac wouldn’t be able to turn on and run. These are stored on a physical hard drive that is located within your Mac. The startup disk is where your Mac will store things such as your operating system and applications. Running Disk Drill in Recovery Mode to Recovery Files.

Change Your Start-up Disk for Every Startup.Change Your Startup Disk for One Start-Up.Method #3 Reset SMC on Mac (Intel Processor Only).Method #2 Reset the NVRAM/PRAM on your Mac.Method #1 Running First Aid in Disk Utility.Why Your Startup Disk Might No Longer Be Working Correctly.

How to make space on startup disk mac