#How to downgrade mac os sierra how to
#How to downgrade mac os sierra mac os x
#How to downgrade mac os sierra install
#How to downgrade mac os sierra software

After backing up all data, then you can start to revert macOS with ease.

Open the Mac disk and click “Users” file folder > Select all files and data that you want to back up and drag to the My Backup file folder.

Open the backup disk and create a file folder and name it, for example, “My Backup”.

Click “Finder” > “Preference” > Check “Hard disks box” under Show these items on the desktop.

If you prefer to use Time Machine, here are the details:

#How to downgrade mac os sierra software

You can either choose third-party Mac backup software to back up Mac data to an external hard drive at once or choose Time Machine to back up all wanted data with ease.Ĭonsidering data security, it’s also highly recommended for you to backup all important data into an external hard drive. It’s highly recommended for you to back up all important Mac data first before you start downgrading Mac OS to an older system.

#How to downgrade mac os sierra mac os x

Tip: Backup Mac data before downgrading macOS or Mac OS X Methods on this page can be applied to all Mac systems including the latest Big Sur, Catalina, Mojave, High Sierra, Sierra, and old Mac OS El Capitan, etc. You are reading: Downgrade macOS/Mac OS X without Losing Data 2022 (Big Sur/Catalina Applicable) Just follow the provided guidance below to bring your previous macOS or Mac OS X back without losing any data:

Bonus Tip: Restore Lost Data after Downgrading macOS/Mac OS X(without backups)Īre you trying to revert or downgrade your new macOS or Mac OS X to the previous version on the Mac computer? If yes, stay here.

Downgrade Mac OS X (e.g: Downgrade Mac OS X Yosemite to El Capitan).

Downgrade macOS (e.g: Downgrade macOS Mojave to High Sierra).

Create USB Boot Drive and Revert Back to Old macOS or Mac OS X

Downgrade macOS or Mac OS X with Time Machine

Tip: Backup Mac data before downgrading macOS or Mac OS X.

So a) I need assistance with actually installing the factory OS, and b) re-installing the thumb drive installation boot so that I'm able to downgrade my OS so that I'm able to continue using my CS6 MC I really need help on this and any assistance would be highly appreciated.

#How to downgrade mac os sierra install

It was running Sierra already, and now I can only install High Sierra, and not even continue using Sierra. I then read that another problem could be the OS in which the installer was created on in the first place to remedy this, I tried a factory reset, but here's the kicker: when at the point of re-installing the factory OS, it actually is UPGRADING to High Sierra, as oppose to the one that came with the MacBook.

I repeated the process, same thing afterwards, I unlocked the thumb drive, and unchecked the ignore ownership box (read it on a forum), and I ran into the same issue. I got to the point where I was asked to choose which disk to boot from, I chose the thumb drive, and I ran into the 'prohibited' sign.

#How to downgrade mac os sierra how to

The process ended up taking approx an hour, but the agent had to end the call prior to the process finishing, but gave me instructions on how to complete the process. I instead chose to downgrade to a previous OS I ran through the boot installation process through the terminal with Apple Care on the line. I reached out to Adobe and the 'help' I received was to purchase the latest version of the software, as they stated they couldn't guarantee compatibility with my OS. I installed my CS6 Master Collection lifetime license on it, and about a month later, I ran into some technical difficulties with Audition. Here's my issue: I recently bought a used 15' Mid 2010 MacBook Pro.