The on-screen instructions are going to make it really easy for you, so follow them religiously and you won’t be able to do any wrong. They also do their best to keep people from using apps not made or approved by Apple, or from tinkering with the system because apparently we’re all too dumb to customise our own computers. Open the installer from Applications (if it doesn’t open automatically) and hit continue.
The environmental cost of these policies is huge. 1, and then create a bootable USB Installer Flash Drive If you want to install or upgrade to macOS Monterey, creating macOS 12.0.1 USB installer is the way to.
Ultimately Apple want to force people to buy new machines as often as possible, when their machines can last for 10 years or more.
What’s even more insane is that Apple now does not offer installers for any previous OS X versions, so if you made the mistake to update and need to go back to your previous OS the only option is to scoure the torrents for an installer.
Remember those really cool (and expensive) cylinder -shaped Mac Pros from a few years ago? Guess what, they are already “legacy” and “not supported”. The installation process ran without any problems and took somewhat less. If it ain’t broke, don’t fix it! Many of the changes introduced in recent OS X upgrades have little or nothing to do with optimising the computer’s performance and more to do with Apple’s strategies for dominating their target market- which is no longer the techy creative people but the dumbed down consumers of social media… This is why many serious users have gone back to Windows. For test: Boot into the newly created installer residing on an external HD and upgrade a clone of the Macintosh HD with OS X 10.11.6 El Capitan to macOS High Sierra 10.13.6 where this clone resides on another external HD both HDs connected to the machine via a USB 3 hub.
I wait for at least 2 years after an OS is released before I update, and only if I have a real need for some new app or device that needs it. MacOS High Sierra - Brand New Bootable 16GB USB Drive Clean Install, Upgrade, or Recover OS MacOS High Sierra on your Mac Mac OS X usb Recovery Install MacOS High Sierra PRODUCT NAME Mac OS X Operating System CONDITION New, Never Used WARRANTY 5 Years Manufacture Warranty USB Only General Requirements According to Apple these Macs are able to run High Sierra: 2009 and Later - iMac (Late 2009. Unless you stop following Apple’s push to lock you in to their increasingly closed kindergarten you will always have these problems. The public beta of macOS High Sierra is available for download and you can test the new and exciting OS update on your Mac.