I tried booting in safe mode to reset things, restarted, logged in to app store re-directed from Apple support page , downloaded installler Barney-My last post was in response to your theory. There were a few updates added yesterday which I installed release date yesterday—for Apple Office Apps, Numbers. And definitively, this is not so. The fact that searching the app store for OS High Sierra download, or any reference to High Sierra yields zero results.
This would imply that High Sierra installer is not present in the app store; or if it is, Apple has, for one or any number of reasons, hidden it so that it is not returned in search results if queried for inside of app store.
Why would they do that? Perhaps—for some particular reason known only to Apple you get a stub installer instead of full installer if your machine cannot be upgraded past High Sierra to Mojave or any other subsequent OS that is released? I know that my mac is not supported on Mojave, and I get a stub installer every time Jun 26, AM. Jun 26, AM in response to ednarcoleptic In response to ednarcoleptic.
More Less. Communities Get Support. Sign in Sign in Sign in corporate. Browse Search. Ask a question. Copying boot files Then you can either select the new volume in the Startup Disk System Preference pane or boot the computer holding down the option key to select the new volume.
Note: If you can do this on a system with a solid state drive it will be faster. MacKeeper allows you to free up necessary gigabytes easily.
The app will help you delete junk, duplicates, and unnecessary apps in a couple of clicks. Try MacKeeper now! It makes sense to create a bootable USB flash drive to install the High Sierra operating system if you want to quickly install it on several Macs without having to download the installer each time.
Creating a bootable drive with a High Sierra installer is quite simple. Basically, all you need is:. Well, your Mac might get slow due to system junk and other unneeded files. Therefore, you have to delete all this junk before backing up your data.
One of the easiest ways to clean your Mac is to use an app such as MacKeeper that will easily and quickly delete all useless and duplicated files while keeping the useful stuff intact. The drive needs to be blank. Therefore, Time Machine will ask for your permission to reformat your external hard drive. For a more detailed guide, check out our article on how to back up your Mac using Time Machine. Get an external drive you want to save the installer on. The system will automatically reformat the drive to make it compatible with a Mac.
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Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes. Select the volume containing the bootable installer, then click Continue. When the macOS installer opens, follow the onscreen instructions. Intel processor Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
Release the Option key when you see a dark screen showing your bootable volumes. Select the volume containing the bootable installer.
Then click the up arrow or press Return.
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