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 ...

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

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 ...

-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 ...

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 ...

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 ...

Some new Mac computers aren't allowing users to reinstall OS X Mountain Lion. Find out the cause of this issue and how you can fix it.

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

Reinstalling Mac OS X on a Partitioned Hard Drive. The Mac OS X Lion operating system includes a recovery utility that you can use to reinstall the operating system if necessary.

How to Fix the Time Machine Mavericks Install Issue We’ve seen Mac OS X Mavericks users report problems involving Time Machine.