#How to downgrade mac os x how to#
#How to downgrade mac os x install#
#How to downgrade mac os x download#

#How to downgrade mac os x install#

You can boot your Mac from the USB flash drive to install the software on your MacвЂ™s hard drive, Your USB drive will be erased and needs to have at least 12 GB of storage. This is a USB flash drive with a specific macOS or OS X installer on it. If you canвЂ™t use Internet Recovery Mode, you can create a bootable USB installer instead. It may take some time.ДЇollow the onscreen prompts to complete your macOS or OS X installation.Д¬reate a bootable USB installer for macOS or OS X

Your Mac downloads the latest compatible version of macOS or OS X over the Internet and installs it on your hard drive.

Click вЂInstallвЂ™ and select your hard drive as the destination.

If you havenвЂ™t done so already, follow these instructions to format your hard drive to work with macOS or OS X.

After a short while, the macOS Utilities window should appear.

Connect your Mac to the Internet by choosing a Wi-Fi network.

Release the keys when a spinning globe appears onscreen.

Briefly press the power button, then immediately hold the command+option+R keys while your Mac boots up.

Power off your Mac from the пЈї menu or by holding the power button.

How do I use Internet Recovery Mode to install macOS or OS X on my hard drive? The entire process may take several hours depending on the quality of your Internet connection. Internet Recovery Mode downloads the latest compatible version of macOS or OS X over the Internet and installs it to your hard drive. If your Mac is from before 2009 or never had OS X Lion, click here to jump to the next section. This mode is only available on Apple computers made after 2009 that were running OS X Lion or later. The simplest way to install macOS or OS X on a new hard drive is by using Internet Recovery Mode. Install macOS using Internet Recovery Mode Internet Recovery mode can take a long time to start, depending on your connection.

Make sure to select the parent hard disk in the sidebar.

When the process is complete, press command+Q to close Disk Utility.

Change the format to Mac OS Extended (Journaled).

Choose a new name for your MacвЂ™s hard drive.

Click the Erase button at the top of the window.

If you donвЂ™t see it, go to View > Show All Devices.

Select your new hard drive from the sidebar.

How do I use Disk Utility to reformat my hard drive? Otherwise, you can skip this step and do it from the Utilities page during the macOS or OS X installation. If your Mac doesnвЂ™t work, you can do this using a second Mac and an external hard drive caddy. ItвЂ™s easy to reformat your hard drive using Disk Utility in macOS or OS X. Disk Utility can be used to format external drives as well. If you donвЂ™t want to lose data from your hard drive, export the data or back it up before continuing. You may need to reformat your new hard drive before installing macOS or OS X on it.

macOS could not be installed, how-to fixДЇormat your new hard drive for macOS or OS X.

#How to downgrade mac os x how to#

How to create a macOS Catalina USB installer.Factory reset MacBook Air and other Macs with macOS.How to downgrade from macOS Mojave to macOS High Sierra.Or use the OS X installation disc that came with your machine - or buy a new one - to boot up and install OS X on your MacвЂ™s hard drive.

#How to downgrade mac os x download#

Download the relevant macOS or OS X installer from Apple, then use Terminal to create a USB installer you can boot up from.

Install macOS or OS X from Internet Recovery Mode, which you can boot into by holding option+command+R while your Mac powers up.

If youвЂ™re tech-savvy but donвЂ™t know where to start, use these Quick Tips to point you in the right direction for getting macOS or OS X on your drive:

How do I install OS X on my hard drive using an installation disc?.

How do I use a bootable USB installer to install macOS or OS X?.

How do I create a bootable USB Installer?.

Which version of macOS or OS X should I create an installer for?.

Create a bootable USB installer for macOS or OS X.

How do I use Internet Recovery Mode to install macOS or OS X on my hard drive?.

Install macOS using Internet Recovery Mode.

How do I use Disk Utility to reformat my hard drive?.

Format your new hard drive for macOS or OS X.