Office 354 Online installation repair results in error message every time

Question

Gmails not importing into Office 365, Have followed all online advice. Including repair of Office 365 Installation files. Get error message when attempting online repair

Answer 1

Outlook did have some issue lately with Gmail.

have you tried the workaround specifically published here? https://support.microsoft.com/office/users-get-errors-0x800ccc0e-0x800ccc0f-synchronizing-gmail-and-yahoo-accounts-in-classic-outlook-e5a7b684-7c5c-4848-ab2d-d48291451f67

Answer 2

Since the Online Repair of Microsoft 365 is failing, use these steps to repair or reinstall Office in a more controlled way:

1. Close all Office apps (Outlook, Word, Excel, etc.).
2. Run an Online Repair from Windows (this is more thorough than the in‑app “repair now” prompt):
   • Windows 10: Right‑click the Start button → Apps and Features → select Microsoft 365/Office → Modify → choose Online Repair → Repair.
   • Windows 11: Right‑click the Start button → Installed apps → select Microsoft 365/Office → … → Modify → choose Online Repair → Repair.
   • Follow the on‑screen instructions until the repair completes.
3. If Online Repair still fails with an error:
   • Completely uninstall Office from Apps & Features/Installed apps.
   • Restart the PC (not just shut down, use Restart).
   • Reinstall Office from the Microsoft account services page where the subscription is registered.
4. After Office is repaired or reinstalled successfully, reconfigure the Gmail account in Outlook and test whether mail now imports correctly.

If the error persists even after a full uninstall/reinstall, collect the exact error text from the Online Repair step and use it to search targeted troubleshooting, or raise a support case with that error code.

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References:

• Troubleshooting Outlook search issues
• Error code 0-3 when installing Office
• Repair an Office application
• "Something went wrong" error when you try to start a Microsoft 365 app
• How can I get office 365 to work? - Microsoft Q&A
• we are sorry, but word has run into an error that is preventing it from working correctly. Word will need to be closed as a result. Would you like us to repair now? - Microsoft Q&A
• When I open an excel file it shows - We're sorry, but excel has run into an error that is preventing it from working correctly, Excel will need to be closed as a result. would you like us to repair now? then shows the option "repair now","help","close" - Microsoft Q&A
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