Well, the wisdom here is that if you depend on third-party drivers for normal functioning of your Mac. Thankfully, I had a second Mac that allowed me to create a bootable drive of macOS Catalina, and I went through the entire process again. After going through the installation process, I realized that the WiFi adapter drivers are not compatible with the new operating system. You can just go through the first tutorial and do both factory reset and fresh installation of the macOS operating system.Ī problem which is not related to Apple that I encountered was that I first tried installing macOS Big Sur Beta. So, I had to first create a bootable drive and then erase the Mac. The major issue with my computer was that I was using an external WiFi adapter. It might seem a bit hard at first, but if you follow the steps correctly, you won’t encounter any problem. My Experience on going through the ProcessĪpple has made the process seamless. Now boot your Mac while holding the option key, and it will show you the option for reinstalling the operating system. Just shut down your Mac and plug in the drive. Using the drive to reinstall macOS is simple. Release the keys when the Apple logo appears on the screen.Ĩ. To do that, shut down your Mac and then restart it while holding the CMD+R keys. The first step is to start your Mac in Recovery Mode.

With that warning out of the way, let’s get started:ġ. And you won’t be able to recover the deleted data. That also means that you should create a backup of your data before proceeding with this tutorial as you will lose all your data. This is also handy when you are selling your Mac to someone as it ensures that no personal data is left on the device. If your Mac is showing its age or having problems, and you have tried all the troubleshooting methods, the final step is to reset it to its original state.

My experience on going through the process.

Do a fresh install of macOS operating system using bootable drive.

You can click on the links below to move to the section you are most interested in. In the second section, I will show how you can install the macOS operating system using a bootable device. In the first section, I will share the steps of resetting a Mac.

How to reinstall macos high sierra