

Just reboot the Mac and hold down Command + R to boot into the restore menu.

Alternatively if you have a Time Machine backup from OS X Mountain Lion, you can use that to restore your system.
#Upgrading mac os mountain lion mac os x
Once updates are successfully run, you’ll be prompted to restart your computer as shown below, click Restart. Apple is actually still selling copies of Mac OS X Mountain Lion at for 19.99. Verify the MAC version by running “About This Mac” where software shall be shown as “OS X 10.8.4 (12E55)”Ĭlick on “Software Update…” click on “Update” for allowing “Updates are available for your computer” Then on the next screen click on “Start using your Mac” Upon Successful installation, your system loads with Mountain Lion and you’ll be prompted for iCloud login which can be skipped Most of the information in this chapter is focused on upgrading from Lion or Snow Leopard (which are required for Mountain Lion). Then click on Restart for the OS X install to trigger upon start upĬhoose “Close Other Applications…” to let the restart to take place
#Upgrading mac os mountain lion how to
Learn how to download Mac OS X Mountain Lion 10.8 ISO and keep your. You’ll be presented with a progress bar showing up Preparation status Snow Leopard is the gateway to update your Mac to a newer operating system via Apple. Installer will present you with the disk details on which it’s going to install the MAC, verify and then click “Install”Īuthenticate this operation as an administrator user With the new Messages app, you can send text, photos, videos, contacts, Web links, and documents to anyone using another Mac, iPhone, iPad. Mountain Lion includes over 200 new features to update your Mac into the best computing experience yet. Locate the “Install OS X Mountain Lion.app” and Launch itĬlick on Agree for EULA acceptance after reading the complete EULA Apple OS X Mountain Lion is the latest release of the world's most advanced desktop operating system.
