Thomas Koons received what we hope is the "final answer" on the question as to why Apple recommends erasing your drive if you want to reinstall Mac OS X 10.1 after installing the Security Update (see ...

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 do ...

It sounds like you might need to create an installation CD somehow. I don't know how you would do that on the PC.

It's easier than ever to wipe your Mac clean. Image: Killian Bell/Cult of Mac macOS Monterey makes it easier than ever to remove all your precious data from your Mac when it’s time to sell it or make ...