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#How to install new mac os on new hard drive how to#
#How to install new mac os on new hard drive software#
#How to install new mac os on new hard drive download#

Clicking the install button of the macOS you want will begin downloading the file.

Tab to the Purchase page of the menu and scroll down to find the line for previous operating systems. You can see all previous versions of OS X your Mac has installed by opening up the App Store and clicking the icon in Applications. Once you have space on your computer, figure out what version of OS X you would like to install. To uninstall certain apps, find the Uninstaller tab and select the apps you haven’t been using for a while.

Review Details to see the list of suggested optimizations.

Select the Smart Scan tab and click Scan.

Optimizing your Mac with CleanMyMac is effortless: To make things easy, use a specialized app like CleanMyMac, which will quickly free up space by detecting unused apps and large files, and offering to completely delete them, with all their hidden corresponding files, in one quick click. Depending on how tidy you are, this might take quite a bit of time.

#How to install new mac os on new hard drive software#

You can, of course, do so manually by deleting unused files and uninstalling old software to free up disk space. You’ll need around around eight gigabytes free depending on which macOS you downgrade to.Įven if you do have enough space, it’s a good idea to clean your computer before installing the desired operating system. Tabbing over to Storage will let you know how much disk space you have available. Clicking the apple in the top left corner of your desktop and selecting About This Mac will allow you to see what OS X version you are currently running.

#How to install new mac os on new hard drive download#

Make sure you are ready to downgrade your operating system by checking in with what version of OS X you already have and ensuring you have enough hard drive room to download the older version. In this article, we’ll take you through everything you need to download and install an old OS X on your Mac.

#How to install new mac os on new hard drive how to#

Follow this IFIXIT guide: MacBook Pro 13" Unibody Mid 2012 Hard Drive Replacement.Try free ✕ How to Install Old OS X on Your MacĪlthough you might think that going back to the old macOS is not possible by looking at the App Store Updates tab, it’s actually quite easy to do. If the system starts up you can then shut down the system and swap over the drives. Restart the system and press the Option key so you can select the SSD as the boot up drive. Once done you'll want to double check if it's working correctly. Run the installer selecting the SSD drive it will install a fresh OS onto your SSD.

The next step is to download from the Apps Store the OS installer. With the SSD plugged in to your system you'll need to run Disk Utility to partition the drive with GUID and format it with Mac OS Extended (Journaled) partition. Here's one unit: Startech 2.5" SATA to USB adapter for 2.5" drives. You'll need to get a SATA to USB adapter so you can connect your SSD externally to your system. Mavericks and newer OS's have firmware updaters within the OS installer. Hint: the last digits (after the last dot) are hexadecimal so you'll need to convert it to decimal to know if your systems version is newer or older than the T/N.You might have something still newer depending on your OS version. Follow this Apple T/N: About EFI and SMC firmware updates for Intel-based Mac computers. First thing I would do here is make sure your systems firmware is upto date.