- #How to reinstall mac os 2017 how to
- #How to reinstall mac os 2017 install
- #How to reinstall mac os 2017 download
- #How to reinstall mac os 2017 free
Which version of macOS or OS X should I create an installer for? macOS Catalina is a free upgrade, but you still need to pay for Mountain Lion.
#How to reinstall mac os 2017 how to
If you can’t create a bootable USB installer, click here to find out how to use a Mac OS X installation disc. You also need a USB flash drive with at least 12 GB of storage. If your Mac doesn’t work, try to borrow one or book an appointment at your nearest Apple Store. To create a bootable USB installer, you need a working Mac and you need to be comfortable using simple Terminal commands.
#How to reinstall mac os 2017 install
You can boot your Mac from the USB flash drive to install the software on your Mac’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 can’t use Internet Recovery Mode, you can create a bootable USB installer instead. It may take some time.įollow the onscreen prompts to complete your macOS or OS X installation.Ĭreate a bootable USB installer for macOS or OS X
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.
Otherwise, you can skip this step and do it from the Utilities page during the macOS or OS X installation. If your Mac doesn’t work, you can do this using a second Mac and an external hard drive caddy. It’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 don’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.
#How to reinstall mac os 2017 download