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macOS High Sierra 10.13 Download Now Available from Mac App Store

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Apple has released macOS High Sierra 10.13 for download in the Mac App Store today, as promised. The size of the download is 4.8GB and the update is propagating worldwide for some users. Be sure to backup any critical files before the update, just in case.

MacOS high sierra download

Some users are able to download the install, but when attempting to install, the error message “Installation of macOS could not continue. Installation requires downloading important content. That content can’t be downloaded at this time. Try again later.”

The Updates tab in the Mac App Store is not showing the High Sierra update. But you can download it by searching for “macos” and it’ll show in up search results, like it did for us below:

As with any Apple OS release, the company’s servers get hammered. You may be better off waiting until this evening if you’re not in a rush to update.

…more to follow

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  • Techno

    Rush or not, wait a week before updating.

  • No Soup 4 U

    I am in no rush at all to get the latest OS on my iMac.
    There always seem to be problems with a few programs that take weeks or even months to fix. Everyone else can continue beta testing for me. LOL

  • David Milette

    Installed on my late 2016 MBP here and its working great once rebooted, my iPhone 7 Plus actually let me know that it was switching photo format to High Efficiency mode now that OSX High Sierra was installed. Be aware however it is a close to 1.5 hour install even on this recent machine. Probably due to the time it takes to convert the file system.

  • BeaveVillage

    Keep in mind the new Apple File System, which is supposed to improve performance and reliability, requires all-flash internal storage to be used. (Solid-state drive)

  • dave

    anyone else not seeing it show up in the app store? I had 3 other updates including iMovie that came out today but no High Sierra…

  • Gerry Lee

    Like printer drivers.

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