Microsoft 365: Stay Updated or Lose Connectivity and Support

Microsoft Office is a staple of business software, setting the standard for productivity applications across the globe. Unfortunately, popularity often means “target” and the bad guys out there are gunning for your system, looking for vulnerabilities they can exploit. This is among the reasons to make sure your Office applications are staying up-to-date with the latest fixes and security features. The easiest way to do this is to turn on automatic updating for Windows via Microsoft Update so that your system gets Office updates for earlier versions of Office you might have installed, such as Office 2010 or an Office volume license install.

Security updates aren’t the only reasons to keep your systems up to date. Sometimes an update addresses compatibility with other applications or services. In recent days, Microsoft has reminded businesses of the roadmap for Microsoft 365 services where certain versions of the Office and Microsoft 365 applications will stop communicating with the Office 365 and Microsoft 365 services.

Microsoft Outlook for Windows

Effective as of November 1, 2021, older versions of Outlook for Windows (starting with Outlook 2007), will be unable to connect with Office 365 and Microsoft 365 services, including hosted Exchange mailboxes. Versions that are only a little bit out of date might work, but are likely to experience connectivity issues with the back-end services. Here’s the list of retired versions of Outlook for Windows:

  • Office 2007 All Versions
  • Office 2010 All Versions
  • Office 2013 Versions prior to 15.0.4971.1000 of Office 2013 (Service Pack 1 with the October 2017 Update)
  • Office 2016 MSI Versions prior to 16.0.4600.1000 of Office 2016 (With the November 2017 Update, KB 4051890)
  • Microsoft 365 Apps for enterprise;(formerly Office 365 ProPlus) 1705 and older
  • Microsoft 365 Apps for business(formerly Office 365 Business) 1705 and older

OneDrive sync on Windows

Microsoft is now aligning the OneDrive sync on Windows systems with the Windows operating system support lifecycle policy.  In short, OneDrive sync on Windows will only be supported on supported versions of Windows beginning in January 1, 2022, If your version of Windows is no longer being supported, then the OneDrive sync on those machines will no longer receive updates or fixes of any sort.

  • Windows 7 and Windows 8.1 will be supported until January 10, 2023
  • Windows 8 reached end of support on January 12, 2016

If you are running the OneDrive sync app on Windows 8.1, you will no longer receive feature updates but will receive security fixes until January 10, 2023.

If you are running the OneDrive sync app on Windows 7 (and are participating in the Extended Security Update (ESU) program), you will continue to receive critical and important security updates until January 10, 2023. Extended Security Updates don’t include new features, customer-requested non-security updates, or design change requests.

If you are running the OneDrive sync app on Windows 8, you will no longer receive updates or fixes of any kind, as Windows 8 is no longer supported.

Businesses concerned with keeping their systems up and running should take care to ensure that PCs and servers are updated with current, supported operating systems and application software. Ignoring PC updates and Windows upgrades can create unnecessary disruption and leads to lost productivity and lost profits. For PCs, Windows 10 or 11 is the OS to be running. For Windows servers, Server 2019 is the most current version.

Mendelson Consulting’s NOOBEH Cloud Services team knows how important it is to keep your core operating software and applications current, compatible and supported. That’s why we only deploy modern servers and current operating systems on the Microsoft Cloud platform, ensuring our hosted clients have the foundation they need to keep workers performing and operations running.

Joanie Mann

Joanie Mann

Focus is on Digital business transformation for small/medium businesses. As the principal consultant for Cooper Mann Company and Noobeh's Director of Cloud Services, Joanie Mann provides support and guidance for businesses seeking to implement cloud solutions and hosted services in their IT environments and consults with solution providers to develop or expand application hosting and application delivery service offerings. Joanie is the Director of Delivery for Noobeh Cloud Services (a division of Mendelson Consulting), and is on the board of advisors of ACE Cloud Hosting &

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