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Question: Problem Installing High Sierra

I've download the "Install Mac High Sierra" from the App Store. I try to install and it requests my account password, I've tried both my Computer Account password and my App Store password and nothing happens. I've tried deleting the download and trying again but nothing seems to work.


I had a previous problem logging into my Mac, I rebooted in Recovery mode and it suggested that I reformat the hard drive, I saved everything and erased the hard drive when it restarted it download OSX Mountain Lion. I don't know if this could have anything to do with this issue but I figure the more information I give you the better.

MacBook Pro, OS X Mountain Lion (10.8.5)

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Mar 9, 2018 5:15 AM in response to CarlyHove In response to CarlyHove

I've never seen it worded quite like that before.


A quick Google suggests that having "foreign" (i.e. non-English) characters in your password may cause problems with this particular window. Even if you don't, it may be worth changing your password anyway to something simpler temporarily to see if it helps.

Mar 9, 2018 5:15 AM

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Mar 9, 2018 5:38 AM in response to CarlyHove In response to CarlyHove

I rebooted in Recovery mode and it suggested that I reformat the hard drive


That should never occur. It means that your Mac's hard disk drive has already failed. Nothing will work properly until you have it replaced. Contact Support to have Apple perform the repair.

Mar 9, 2018 5:38 AM

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Mar 9, 2018 5:55 AM in response to dialabrain In response to dialabrain

"You" as in a representative of Apple. I assume that's what you are, I'm on Apple Support therefore you work for Apple. I apologise if you feel I've wronged you in some way and for my ridiculous notion thinking that I was speaking to the same person.

Mar 9, 2018 5:55 AM

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Question: Problem Installing High Sierra