how to install new mac os on old desktop

How to install new mac os on old desktop how to#
How to install new mac os on old desktop drivers#
How to install new mac os on old desktop download#

You only need to write over a drive once to securely wipe it, but if you’re paranoid you can also wipe it three or five times.Ĭlick “OK” once you’ve decided, but remember: if your Mac has a solid state drive, you do not need to use these options. Now move the dial up, to randomly write data over your entire drive. You still need to wipe the drive, however, or your files will remain in place, so skip to the end of this step to do so.) (If your Mac has a solid state drive, you can skip this part: your SSD will already securely erase files thanks to TRIM. If you’re wiping a mechanical drive, click “Security Options” in the window that pops up. Click your primary drive, then click “Erase” If not you can find Disk Utility in the menu bar: click Utilities then Disk Utility. To get started, click the Disk Utility option.ĭepending on how you started Recovery Mode, you may be presented with the option to start Disk Utility right away, as seen above.

How to install new mac os on old desktop how to#

We’ve shown you how to securely wipe a hard drive with your Mac, and doing so in Recovery Mode isn’t really different from doing so within macOS.

If you want a truly clean installation, however, you need to first wipe your hard drive. We recommend backing up files before you do this, just in case, but otherwise you’re ready for step three.

Your user accounts and files will stay exactly where they are-only your operating system will be overwritten. If you want to re-install your operating system, but leave your files in place, you can skip this step. RELATED: 8 Mac System Features You Can Access in Recovery Mode Step Two: Securely Wipe Your Hard Drive (Optional) Once you’ve managed to open up the Recovery Mode in some fashion, we can move on to wiping your drive securely.

How to install new mac os on old desktop download#

You can access recovery without a partition using Network Recovery: hold Command+Shift+R while turning on your Mac and it will download the Recovery features for you. Failing that, you can create a bootable USB installer for macOS Sierra, and boot from that by holding “Option” while turning on your Mac. Don’t go for the beta version of the operating system that is not released yet.If neither of these options work, don’t panic! You’ve got a couple of options yet.

How to install new mac os on old desktop drivers#

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.