![Mac Mac](https://www.10wallpaper.com/wallpaper/1152x864/1305/Modern_urban_civilization-May_2013_Bing_wallpaper_1152x864.jpg)
- The maximum version of Mac OS X, OS X, or macOS supported by each G3 and later Mac follows. For complete specs on a particular system, click the name of the Mac. For all Macs that are compatible with a specifc maximum supported version of Mac OS X - courtesy of EveryMac.com's Ultimate Mac Sort - click the OS of interest.
- Maximum Apple supported macOS for your 2011 iMac is High Sierra (10.13.6), but minimum OS to upgrade is 10.8. You will need a 2 step process to get to High Sierra. First, upgrade to a macOS later.
Check compatibility
You can upgrade to OS Yosemite on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8GB of available storage space.
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
![Mac Mac](https://www.highreshdwallpapers.com/wp-content/uploads/2011/11/Clear-Lake-Wallpaper.jpg)
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X Yosemite, the installer will let you know.
Make a backup
This year's macOS Mojave beta, and subsequent update, won't run and can't be installed on any Mac older than about 2012 — or so Apple thinks. Complete technical specifications for every Apple Mac released in 2011 are listed below. For other years, see the main By Year page. Currently Shipping Macs additionally may be of interest. To view each Mac released from 1984 to the present on a dynamic, interactive timeline, you also may find EveryMac.com's Ultimate Mac Timeline useful. August 8, 2011: Disc. March 5, 2013: Order: MC978LL/A: Model: A1311 (EMC 2496) Family: Late 2011 (Edu) ID: iMac12,1: RAM: 2 GB: VRAM: 256 MB: Storage: 250 GB HDD: Optical: 8X DL 'SuperDrive' Complete iMac 21.5-Inch 'Core i3' 3.1 (Late 2011) Specs.
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install OS X, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download OS X Yosemite
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
Os Mac 2011 Mac
Text from pdf mac. If you still need OS X Yosemite, use this link: Download OS X Yosemite. A file named InstallMacOSX.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg. Western digital external hard drive for mac.
2011 Macbook Air Latest Os
Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
Macbook Air 2011 Os
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install OS X Yosemite.
Mac Mid 2011 Os Update
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
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 OS X and related updates to your Mac firmware.
Learn more
- OS X Yosemite won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.