Trouble get­ting started

Hav­ing trouble get­ting High Sierra to in­stall? Here are some so­lu­tions to try out

Mac|Life - - FEATURE -

High Sierra usu­ally in­stalls with­out prob­lems, but there are a few com­mon hic­cups. If your hard­ware and sys­tem are com­pat­i­ble but you get an er­ror mes­sage such as “macOS High Sierra down­load has failed” or “in­stal­la­tion could not con­tinue,” then it could be that your in­ter­net con­nec­tion or Ap­ple’s server is too busy. Try again later, ideally at a qui­eter time of day.

It might be worth switch­ing from WiFi to an Eth­er­net ca­ble, so your con­nec­tion is as re­li­able as pos­si­ble. In the Mac App Store, choose Store > Check for Un­fin­ished Down­loads, and you should be able to re­sume any stalled down­loads. If not, choose Store > Sign Out, then sign in again.

If you get an er­ror mes­sage say­ing in­stal­la­tion has failed, some­thing is miss­ing or dam­aged, or just “an er­ror oc­curred” while ver­i­fy­ing or in­stalling, restart your Mac, open your Ap­pli­ca­tions folder, lo­cate the in­staller app (named “In­stall macOS High Sierra”), and dou­ble-click it to run it again. If you get an er­ror mes­sage or it won’t run, trash the in­staller app, then down­load a fresh copy and open it.

Make room

Ver­ify there’s enough free space. To in­stall High Sierra, the tar­get drive needs at least 14.3GB of space avail­able. Check how much you have by choos­ing Go > Com­puter and use Get Info (Cmd+I) or turn on Fin­der’s sta­tus bar (View > Show Sta­tus Bar), which ap­pears across the bot­tom of the app’s win­dows — if you have more than one drive or partition, make sure you’ve se­lected your Mac’s startup disk.

If you’re us­ing Sierra, the op­er­at­ing sys­tem of­fers some ad­vice on mak­ing space. Choose Ap­ple Menu > About This Mac, click the Stor­age tab, then Man­age. Ap­ple pro­vides ad­vice on us­ing this fea­ture, and on free­ing up space, at

Bear in mind that even if you can in­stall High Sierra, your Mac might not sup­port all its fea­tures — check at

The old­est Macs that run High Sierra came with Snow Leop­ard, but you need at least Moun­tain Lion to up­grade; if needed, go via Sierra:

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