Why Won't Outlook Open On My Computer
My Outlook App On Mac Won't Update Windows 10
Microsoft Outlook For Mac Update

Jun 22, 2018 My problem is not that I can't see any updates waiting for me in the App Store, on the Updates page. On the contrary, I've now got four of them waiting for me. The problem is that whether I click on 'Update All' or just on an individual 'Update' by one of the updates, the App Store simply won't install any updates for me. The following update is the latest released localized update package for the Outlook Social Connector. Therefore, you have to install only Oscintl-en-us.msp from the following package (for U.S. English versions of Outlook 2010). The Osc-x-none.msp file in the following article (2553406) was updated with a later version and is available in the global update for the Social Connector.

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Summary

This article contains a complete list of the most recent hotfix updates, public updates, and service packs for Microsoft Outlook. Some Outlook features depend on Microsoft Word and Microsoft Office components. Therefore, you should also install the latest updates for the Word and Office core components.

Jul 24, 2018 My Outlook app won't launch. It was working fine until about a week ago. I think there must have been a Mac OS update? I am running macSO High Sierra 10.13.6. I tried running the outlook search repair.app. It ran for a long time, at least several hours, and then I went to bed. It was done in the morning. It did not solve the problem.
Click on the icon and make sure you're signed into the Microsoft account associated with your Office license. Click on the icon choose Downloads and Updates. Click Get Updates. Note: If you get a 'You're good to go' message after clicking Get Updates, you don't have any new updates to install.

Note

The information in this article applies only to U.S. English versions of Outlook. Other language versions of Outlook have some updates that differ from the updates that are listed in this article. To find links to the most recent cumulative and public updates for Microsoft Office, see Office updates.

This article will be updated to reference new updates as they are released.

For more information about the most recent Outlook updates, refer to the following sections, as appropriate:

Click-to-Run installations of Office

The following updates apply only to Office clients that are installed by using a .msi file. They do not apply to click-to-run installations of Office. By default, click-to-run installations are automatically updated.

To determine whether you are using a Click-to-run version of Office, click the File tab in Outlook, and then click Office Account. If you see Office Updates under Product Information, as shown in the following figure, you are using a click-to-run installation of Office.

To see the latest version information for click-to-run installations, click Update Options, and then click View Updates.

For more information about click-to-run updates and to find the latest click-to-run version, go to the following Microsoft Office articles:

Office 2016: Update history for Office 365 ProPlus (listed by date)
Office 2013: Update history for Office 2013
Office 2010: Update history for Office 2010 Click-to-Run products

Outlook 2016

MSI installations of Office 2016:

The following updates apply only to Office 2016 clients that are installed by using a .msi file. They do not apply to Click-to-run installations of Office 2016. By default, click-to-run installations are automatically updated. You cannot install the updates from these articles on click-to-run installations of Office 2016.

Outlook (global) update

3141453 January 3, 2017, update for Outlook 2016 (KB3141453)

Outlook Junk Email Filter update

3115407 August 2, 2016, update for Outlook 2016 Junk Email Filter (KB3115407)

Microsoft Word update

3128057 MS17-002: Description of the security update for Word 2016: January 10, 2017

Microsoft Office 2016 (Mso.dll) update

3141473 January 3, 2017, update for Office 2016 (KB3141473)

After you install all these updates, you should see the following versions of important files that are used by Outlook.

File	Version
Outlook.exe	16.0.4483.1000
Olmapi32.dll	16.0.4483.1000
Outlfltr.dat	14.0.16307.618
Winword.exe	16.0.4483.1000
Wwlib.dll	16.0.4483.1000
Mso.dll	16.0.4483.1000

Outlook 2013

MSI installations of Office 2013:

The following updates apply only to Office 2013 clients that are installed by using a .msi file. They do not apply to Click-to-run installations of Office 2013. By default, click-to-run installations are automatically updated. You cannot install the updates from these articles on click-to-run installations of Office 2013.

Important

Updates for Office 2013 programs that are dated April 14, 2015, or later require Office 2013 Service Pack 1 (SP1) to be installed before you can install the update.

You can download and install Service Pack 1 for Office 2013 from the following Microsoft Knowledge Base article:

2817430 Description of Microsoft Office 2013 Service Pack 1 (SP1)

Outlook (global) update

3141466 January 3, 2017, update for Outlook 2013 (KB3141466)

Outlook (US English) update

2817430 Description of Microsoft Office 2013 Service Pack 1 (SP1)

Outlook Junk Email Filter update

3115404 August 2, 2016, update for Outlook 2013 Junk Email Filter (KB3115404)

Outlook Social Connector global update

3054854 June 9, 2015, update for Outlook 2013 (KB3054854)

Outlook Social Connector Facebook provider

3054856 June 9, 2015, update for Office 2013 (KB3054856)

Outlook (UMoutlookaddin.dll) update

3101487 November 10, 2015, update for Office 2013 (KB3101487)

Microsoft Word update

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3141464 January 3, 2017, update for Word 2013 (KB3141464)

Microsoft Office 2013 (Mso.dll) update

3141474 January 3, 2017, update for Office 2013 (KB3141474)

After you install all these updates, you should see the following versions of important files that are used by Outlook.

File	Version
Outlook.exe	15.0.4893.1000
Outllibr.dll	15.0.4891.1000
Olmapi32.dll	15.0.4893.1000
Outlfltr.dat	14.0.16307.618
Socialconnector.dll	15.0.4727.1000
Socialprovider.dll	15.0.4723.1000
Facebookprovider.dll	15.0.4723.1000
UmOutlookAddin.dll	15.0.4771.1000
Winword.exe	15.0.4893.1000
Wwlib.dll	15.0.4893.1000
Mso.dll	15.0.4893.1000

Outlook 2010

Important

Updates for Office 2010 programs that are dated November 11, 2014, or later require Office 2010 Service Pack 2 (SP2) to be installed before you can install the update.

You can download and install Service Pack 2 for Office 2010 from the following Microsoft Knowledge Base article:

Why Won't Outlook Open On My Computer

2687455 Description of Office 2010 Service Pack 2

Outlook (global) update

3118313 MS16-107: Description of the security update for Outlook 2010: September 13, 2016

Outlook (localized language en-us) update

3055041 August 11, 2015, update for Outlook 2010 (KB3055041)

Outlook Junk Email Filter update

3115475 August 2, 2016, update for Outlook 2010 Junk Email Filter

My Outlook App On Mac Won't Update