Install macOS Sierra Window Too Big for Display

I've been trying to install Sierra for a while, but every time I get to this point in the installation, the window becomes so big that I can't reach the "install" button on the bottom of the window:

I've tried clicking on the disk drive and "1", but nothing on the screen seems to respond to clicking. The "zoom" function under "Window" doesn't work, the green button for zooming is greyed out, the command-minus shortcut doesn't work...I restarted the app countless times, deleted and re-downloaded it, tried safe-booting, but nothing I've tried seems to work, and it's incredibly frustrating to have something so small hold me back from installing this.

Any help would be greatly appreciated!

MacBook Pro, OS X Mavericks (10.9.5)

Posted on Dec 16, 2016 4:28 AM

19 replies

Porokiin Author

Level 1

8 points

Dec 17, 2016 2:22 AM in response to Haydude

It looks like this will be the route I'll have to take, since nothing else I tried has worked. I don't have the cables necessary right now, but I was holding out in hopes that another solution would arise. Thanks!

Eau Rouge

Level 8

42,656 points

Dec 17, 2016 2:32 AM in response to Porokiin

Do you have any third party apps that modify the behaviour of your mac.

When you open other windows do they disappear off the screen as well

or is it just peculiar to the install screens.

Dec 17, 2016 8:24 AM in response to Porokiin

Have you tried the following:

1. Delete Sierra (make sure it is showing "Download" next to it in the Purchased tab of the Mac App Store

2. Boot your Mac into Safe Mode by holding down the shift key while turning on

3. Go back to the App Store and click on Download to re-download it and see if that fixes the issue

1. Set up a new User Admin account sign into the App Store with your Apple ID

2. Delete Sierra (as above)

3. Go back to the App Store and click on Download to re-download and see if that fixes the issue

Cheers,

Dec 17, 2016 9:01 AM in response to Porokiin

You could use an 8GB or larger USB-stick to make a bootable Installer USB. A simple free Utility called DiskMakerX has the scripts needed to automate the process of making the USB stick once you have the Installer downloaded.

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Install macOS Sierra Window Too Big for Display