For what it's worth, Sierra bricked my 2011 iMac. Initially the update installation simply failed, so after finally successfully rebooting I deleted the update file thinking it might be corrupt. I then re-downloaded and tried again. This time, my iMac would chime on power up and then promptly shut itself down again. So then I booted from an external drive and wiped my HD to do a clean Sierra installation. Failed again. I'm back on El Capitan now, and I assume I will be there forever or until they stop supporting it. It's a pity, as my 2011 iMac is a lovely and fast machine.
I kept getting Kernel panics on my mid-2011 imac in High Sierra. Google chrome update free download. The extended mac diagnostic reported '4MEM/9/40000000:0x8839f218', so I suppose one of the 4 RAM modules is failing - not sure how to. Download the latest Windows Support Software for your Mac. For the 2011 iMac, this software can be found at Boot Camp Support Software 5.1.5621. On my Mac, these files were downloaded to the /Downloads/BootCamp5 directory. This software can also be use with the Mac models given below. MacBook Air (11-inch & 13-inch, Mid 2011).
Nov 21, 2016 3:11 PM
To get the latest features and maintain the security, stability, compatibility and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
- A couple of noobs attempt to upgrade the hard drive of a mid 2011 iMac and the results were pretty awesome. I've provided the links to what we used.
- I test an upgrade up my old iMac from El Capitan to High Sierra. See the Geekbench 4 scores!
Find out how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it may state that your Mac doesn't have enough free storage space for the installation or that the installer is too old to be opened on this version of macOS.
If you want to check compatibility before downloading the installer, find out more about the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan or Yosemite. You can also check compatible operating systems on the product ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini or Mac Pro.
Make a backup
Before installing, it's a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Find out how to back up your Mac.
Download macOS
Upgrade Imac 2011 To High Sierra 10.13
It takes time to download and install macOS, so make sure you're plugged into AC power and have a reliable Internet connection.
3d editing software for pc. These installers from the App Store will open automatically after you've downloaded them:
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite or Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion or Lion
Your web browser will download the following older installers as a disk image called InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It will install an app named Install [Version Name]. Open that app from your Applications folder to start installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion or Snow Leopard
Install macOS
Follow the onscreen instructions in the installer. It may be easiest to start the installation in the evening so that it can be completed overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
How To Update Imac To High Sierra
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar or show a blank screen several times as it installs both macOS and related updates to your Mac firmware. Resume & cv expert 3 0.
Learn more
You may also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.
