How do I restore my Apple operating system?

Apple_repairhelp Said:

"OS missing: How do I restore my Apple operating system?"

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Boot Question Mark:

Is there a question mark at the boot of your Mac? If so, you need to reinstall the macOS. Find Out how to here: How to reinstall macOS - Apple Support

Please help us help you. There have been "Apple operating systems" since 1976. 47 years worth!

Also, you found a forum section for Apple products made before 1998. Is your computer that old?

We are your fellow end users and have no information about your computer unless you provide it. Please let us help by adding details. We are notoriously bad at guessing what kind of computers others are asking about.

Apple posted this regarding forums questions: