Microsoft to Disable Office 2019 for Mac Next Month Due to Certificate Expiration
Starting July 13, 2026, Microsoft Office 2019 for Mac will enter 'reduced functionality mode,' allowing users only to open and print files but not edit, save, or create documents. The change is caused by an expiring digital certificate used to validate Office licenses, and because Office 2019 reached end of support in October 2023, it cannot receive the update needed to fix the issue. The situation is particularly contentious because Microsoft had previously assured users their Office 2019 apps would 'continue to function,' a promise it quietly removed from its support documentation last month.
Microsoft has confirmed that Office 2019 for Mac — including Word, Excel, PowerPoint, Outlook, and OneNote — will lose core editing capabilities on July 13, 2026, due to an expiring digital certificate that validates user licenses. Users will be left in 'reduced functionality mode,' able only to open and print files, but unable to edit, save, or create new documents. The issue also affects Microsoft 365 subscribers on macOS, iPhone, and iPad running outdated versions, though those users can resolve it by updating to macOS 12 (Monterey) or iOS 17 and then updating the app. Office 2021 for Mac users can similarly update to avoid the problem, as that product remains supported until October 13, 2026. Office 2019 users, however, have no recourse — Microsoft states the issue 'cannot be resolved by updating or reinstalling Office 2019 for Mac' — and are being directed to purchase Office 2024 or subscribe to Microsoft 365. Windows and Android users are not affected by the certificate issue. The situation has drawn criticism because Microsoft had previously promised in 2023 that Office 2019 apps would 'continue to function' after end of support, a statement it quietly revised last month to only guarantee that user data would not be lost.
What's missing
The exact number of users impacted has not been reported by any source.
How coverage differed
The Verge and The Register both used notably critical framing, with The Verge calling it 'leaving users out in the cold' and The Register describing it as 'poor form' and highlighting angry social media reactions; Engadget's coverage was more neutral and informational, though it still noted the broken promise was 'galling' for affected users.
What different sources said
- The RegisterCenter
Apple version of Office 2019 becomes useless in a month
- The VergeLeft
Microsoft is disabling Office 2019 for Mac next month
- EngadgetCenter
Microsoft Office 2019 for Mac will become read-only next month
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