All microsoft office applications Excel, Word, Outlook, Etc. open with error and cannot be used

Schuler, Mike (SI B PRO AUT PD BFG HW) 20 Reputation points
2026-08-24T14:26:11.8533333+00:00

Dialog Microsoft <application name>

We're sorry but <application name> has run into an error that is preventing it from working correctly. <application name> will need to be closed as a result.

Would you like us to repair now?

Repair Now does not fix problem.

Restart laptop does not fix problem.

All office applications open, present error dialog, and close.

Need immediate fix.

Microsoft 365 and Office | Other
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Answer accepted by question author
DaveM121 923.6K Reputation points Independent Advisor
2026-08-24T14:58:31.32+00:00

The 'Repair Now' button on that error popup dialog only performs a quick repair of the Office apps and that rarely resolves the problem with the Office apps, the best option is to perform a full online repair of your Office installation.

Before performing this process, please log into your Microsoft account on this link (https://account.microsoft.com/services/) and check to ensure your Office licence or Microsoft 365 subscription is listed correctly on your account.

Open the Settings App (gear icon on your Start Menu)

Go to Apps, then scroll down to find Microsoft Office

Select that and choose Modify - Online Repair

That should fix any issues with your Office Installation.

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