revert to previous imac operating system

So if you want rid of the beta OS, it’s a simple case of deleting the partition. Then run the stable OS for your day-to-day work, and the beta OS in the partition. Really, if you are going to try beta software, the best option is to partition your hard drive. Then all future High Sierra updates will be pushed out to you when they become available. You will be in the macOS Utilities window. Step 2 Hold and press 'Command' and 'R' keys while the startup disc is waking up. Once the official High Sierra comes out, you can then overwrite the beta version with the official version using the App Store method shown above. Step 1 Plug the cloned external hard drive to Mac. The official High Sierra will be out, and you will be stuck on a previous beta release (if you switched off the beta releases in System Preferences). I have a regular pc usb keyboard plugged in - and tried using the Windows Key, CTRL Key, and ALT Key as substitutes for the command key. I have tried the command + r trick to get it to the restore options, but it never does anything. Going Back To The Sierra & High Sierra ProblemĪssuming you decided not to wipe your system and wait instead for the official release of High Sierra, you will be in a unique situation. Hey all, I have been looking at google to see how to factory restore an old iMac for resale. It might be best to go and do something else in the meantime. When you’ve done all of that, click “ Open” and let the Mac do its thing. Shut down all other open applications to speed up the rebooting process.Move ALL important files off the Mac and into cloud storage or a removable hard drive.Move it into cloud storage or a removable hard drive. Https:// - Buy Refurbished Apple Macbook Pro, Macbook Air, iPhone, iPad, Mac Mini, Mac Pro, and just about every other Apple product This video. Save any unfinished work and close the files.Now before you start downgrading your operating system, you need to take some precautions. Once it is finished, that “ Downloading” button will change to an Open button.

Revert to previous imac operating system