Reinstalling Mac OS X can seem daunting, but it's actually a relatively painless and wonderfully effective troubleshooting tool.

There are many reasons to reinstall macOS. It can fix any one of several OS errors. Plus, it helps secure your Mac for sale if you need to wipe all of your data. There are a few different ways to ...

If you see a prohibitory symbol at a startup disk, installed an older version of the OS X inadvertently or if you have erased the startup disk, you might consider reinstalling OS X on your Mac ...

MacOS includes a recovery partition that allows you to easily erase all data on your Mac and reinstall your OS without an installation disc. In this article we will show you how to reinstall Mac OS ...

While instructions are available to remove the latest malware threats for OS X, some may choose to simply reinstall OS X and start from a clean slate. Topher, an avid Mac user for the past 15 ...

My friend was wiping my Mac so I could sell it and I’m pretty sure they’ve deleted the start up disk? It’s not letting me reinstall the OS on a recovery startup. She wonders about a fix ...

This detailed walkthrough covers how to revive and restore M1 Macs, what the difference is between them, and how to know which one to do.

I have an old Mac -- a Powermac 7200/75 -- that I'd like to completely wipe and start over with a clean OS install. The problem is, I don't know how to do it. If this were a PC, I could have it ...

Apple macOS Sierra: How to reinstall the Mac operating system Check out the instruction guide to reinstall macOS Sierra.

-system -Powermac 5500/225OS 8.0This will boot without extensions. Without bypassng them, the OS starts to load from either the CD or from the HDD but stops before any extensions appear.I am ...