An existing Computer with Mac, Linux or Windows Operating System: This is the computer where you will download and set up Sierra Installer. The computer can run either Windows or macOS; both operating systems will work. Uncompress Sierra DMG with dmg2img, then restore the uncompressed image to USB, Change the variables below as you need. Global Nav Open Menu Global Nav Close Menu; Apple; Shopping Bag +. If you are a Windows user then you have to download the dmg file from the link below and you know without virtualization software we can’t install any Mac operating system. As we have the two powerful software like Virtualbox and Vmware Workstation, to install MacOS High Sierra on Virtualbox or Vmware then you will need a macOS High Sierra dmg file or you can say ISO file.
Check compatibility
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later MacBook Pro introduced in mid 2010 or later Mac mini introduced in mid 2010 or later iMac introduced in late 2009 or later Mac Pro introduced in mid 2010 or later
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 macOS Sierra, the installer will let you know.
Make a backup
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 macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS SierraOs X Sierra Download Dmg
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.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 InstallOS.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.
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 completeDownload Mac Os High Sierra Dmg
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.
Learn more
Download macOS Sierra 10.12.5 free latest standalone offline bootable DMG image. Apple macOS Sierra 10.12 is a complete and stable macOS release with various fixes and enhancements.
macOS Sierra 10.12.5 ReviewFree Download Mac Os Sierra
The macOS Sierra specifically focuses on the performance, compatibility, stability and the security of Mac with numerous enhancements. It comes packed with different new features and various enhancements to provide the best Mac operating system. A sleek user interface with the support for all the latest devices and better compatibility features. Also, it efficiently consumes the system resources and performs all the operations without slowing down your Mac computer.
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This release includes various fixes for audio stuttering when using USB headphones. Better Mac App Store compatibility with all the latest updates. Moreover, it also adds support for installing Windows 10 Creators Update. In addition, it adds support for camera RAW formats along with various Photos enhancements. Also, this release fixes a date issue for education and enterprise customers. Potential Kernel Panic prevention at the time of starting up with a NetInstall image and much more to provide a stable environment for all.
Features of macOS Sierra 10.12.5
Technical Details of macOS Sierra 10.12.5
System Requirements for macOS Sierra 10.12.5
macOS Sierra 10.12.5 Free Download
Download macOS Sierra 10.12.5 free latest version standalone offline DMG image setup by clicking the below button. It is a complete operating system providing a wide range of new features and enhancements. You can also download MacOS High Sierra 10.13.3
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