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Microsoft Outlook For Mac High Sierra

If you’re running version 15.32 of Microsoft Outlook for MacOS or lower, and have upgraded to MacOS High Sierra, you will receive an error that says “You can’t use this version of the application “Microsoft Outlook” with this version of MacOS“.

You can fix this problem with these steps.

Dec 18, 2017:: Subscribe my Channel Thanks:: Latest version How you can Fix Outlook Issue if you update macOS High Sierra 10.13.6 Download. Microsoft has warned users of Office for Mac 2011 not to upgrade to Apple's macOS High Sierra when the new operating system launches next month. 'Word, Excel, PowerPoint, Outlook and Lync have not. Microsoft has announced in a support document that Office for Mac 2011 will not be supported under macOS 10.13 High Sierra. It doesn’t go as far as to say the software will not work, but hints.

  1. Open Microsoft Word, Excel, or another Microsoft application.
  2. Select “Help” > “Check for updates“.
    If you don’t see this option, or if you don’t have an option to update, download and install AutoUpdate.
  3. Walk through the wizard to update Microsoft Applications. You will be able to upgrade Microsoft Outlook.

Once updates are complete, Microsoft Outlook will work in MacOS High Sierra.

Outlook For Macintosh

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Office 365 for Mac users might well be confused about compatibility with their MacOS. Some Office 365 for Mac users might not be getting the latest and greatest features.

Microsoft has a blog post might be accurate, but it doesn’t exactly shine with clarity. The situation appears confusing, so we’ll try to break it down for you.

In short: Office 365 for Mac gives you the latest features and updates if you have the latest MacOS (Mojave 10.14) or the two before (10.13 High Sierra or 10.12 Sierra).

Office 365 for Mac needs Mojave, Sierra or High Sierra

The ‘subscription’ Office 365 for Mac available now needs the MacOS released in the last two years. That’s version 10.12 (Sierra) or later.

If your computer has 10.11 (El Capitan) or earlier, Office 365 for Mac will still work and get Microsoft’s mainstream support. But no updates, because those updates need the more recent Mac OS.

What happened back in September 2018?

Back in September 2018 there was a mostly hidden switch in Office 365 for Mac software. The code base for the product changed depending on the version of MacOS being used.

Office 365 with Sierra 10.12 or later. These customers moved to the same code base as Office 2019 for Mac. That means both Office 365 for Mac and Office 2019 for Mac users share common code. The difference is that Office 365 users get new and updated features while Office 2019 is fixed and doesn’t get updated features. Rufus for mac.

Office 365 with El Capitan 1.11 or earlier. The existing ‘Office 2016 for Mac’ code base is kept, for compatibility with older MacOS. As a result, there’s no feature updates.

What to do?

Most Mac users update their MacOS relatively soon after an update comes out. Cautious ones might wait a few months before updating (just like Windows users).

Unless there’s a specific reason for keeping an older MacOS running, Office 365 for Mac customers should do proper backups then upgrade to at least Sierra 10.12 if not the latest MacOS Mojave.

Disk Compression and MacOS

Outlook for Mac is a big disk space hog. It’s method of saving data on the disk is wasteful and quite different to the PST/OST system in Outlook for Windows. One way to reduce the disk space used by Outlook for Mac was the disk compression see https://office-watch.com/2017/reduce-disk-space-used-outlook-mac/

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Microsoft Outlook For Mac High Sierra Installer

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One major difference in High Sierra 10.13 is the switch to Apple File System APFS which does NOT support disk compression. Older machines with ‘Mac OS Extended’ (aka HFS+) drives will still work but newer Mac’s come with APFS and no compression option.

MacOS versions vs names

Apple gives each major MacOS release a name but there’s also a version number. The latest MacOS is officially version 10.14.

Most people and Apple itself calls version 10.14 ‘Mojave’ instead. So, naturally, Microsoft doesn’t use those names and instead reverts to the numbering <sigh>

Maybe Microsoft sticks with numbers because that’s what they do in Windows. Windows releases are promoted with names like ‘Creators Edition’ or ‘October 2018’ but those names are notably missing in Windows itself. Go to Windows, Settings About and you’ll see a version number but not the name. <another sigh>

Microsoft Outlook For Mac High Sierra

You can find your MacOS version at Apple About This Mac. The Mac name and version number are clearly displayed. A practice Microsoft Windows could well learn from.

Microsoft Outlook For Mac High Sierra Download

A Brief History of MacOS

To help you navigate Microsoft’s Office for Mac compatibility, here’s a recent history of Mac OS versions and names

10.14 Mojave, released in September 2018. The latest MacOS

10.13 High Sierra, released September 2017

Microsoft Outlook For Mac High Sierra 10.13.4

10.12 Sierra, released September 2016

Microsoft Outlook 2016 Mac High Sierra

10.11 El Capitan

Consider choosing Macs that have SSD drives over those that have HDD drives. But size is not everything. Mac mini for producing music


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