Jump to content
Welcome to InsanelyMac Forum

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.


[How To] (Only Real Mac) Fix Non-Startup Disk Black Screen Error

1 post in this topic

Recommended Posts

Sometimes, it happens that when you try to turn your Mac. You get a black screen with an error saying Non-Startup disk.


Here's the solution.


1. Turn on your Mac by holding the Option/Alt key.

2. You should see Macintosh HD press enter, let it load

--- If you don't follow the next part of the procedure (which is easy) you will always have to hold the option key to boot ---

3. Go to System Preferences

4. Click the Startup disk PrefPane

5. Click on the lock on the lower left side of the window and put your password if you have one.

6. Then Click Macintosh HD and make sure it is selected.

7. Click the Lock again

8. Quit System Preferences.

9. Reboot and test.


Enjoy ! B)

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.