Sign-in & Login Problems

Fix Word, Excel, and Outlook Keep Asking for Sign-In on Windows 11

Camila Milosovich Sep 28, 2026 870 views

Question details

Microsoft 365 applications repeatedly prompt the user to sign in despite already being authenticated.

How to Fix Word, Excel, and Outlook Repeatedly Asking for Sign-In

Product: Microsoft 365 (Word, Excel, Outlook)
Device & OS: Windows 11
Scenario: Using Microsoft Office desktop applications while logged into a work or personal Microsoft account.
Observed behavior: A yellow warning icon appears, and the applications ask for sign-in. Selecting Continue restores access temporarily, but the prompt returns after a few hours, sometimes disrupting OneDrive AutoSave.

Before you start

Before troubleshooting, verify your internet connection stability and ensure you have the correct Microsoft account credentials readily available.

Solution 1Recommended

Verify Microsoft Service Health and Update System

Because this issue often stems from Microsoft's server-side authentication, checking the service status and updating your software should be your first step.

Occasionally, a backend synchronization issue on Microsoft's servers causes authentication tokens to expire prematurely across multiple devices.

Check Service Health

Log into the Microsoft 365 Service health portal via your web browser to ensure there are no ongoing authentication outages.

Update Office Applications

Open Word or Excel, navigate to File > Account > Update Options, and click Update Now.

Update Windows 11

Go to Settings > Windows Update and check for any pending system updates that might contain security or authentication patches.

Verify Microsoft Service Health and Update System

Solution 2

Clear Obsolete Credentials from Windows Credential Manager

Outdated or corrupted saved passwords can cause continuous authentication conflicts in Office applications.

Free Microsoft Office alternative

Try WPS Office for a Hassle-Free Document Experience

If persistent Microsoft 365 sign-in loops are disrupting your workflow and disabling AutoSave, consider switching to WPS Office. It provides a lightweight, locally reliable, and free alternative that does not constantly demand cloud authentication to perform basic tasks.

1. Download the Installer: Visit the official WPS website and download the free installer for Windows.
2. Install WPS Office: Run the downloaded setup file and follow the quick on-screen instructions to install the software on your Windows 11 device.
3. Open and Edit Seamlessly: Launch WPS Office, open your existing Microsoft Office files, and start editing immediately without recurring sign-in interruptions.

Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx).Lightweight installation with robust offline functionality, preventing work interruptions from account sign-in loops.Familiar tabbed user interface, ensuring a seamless and quick migration.Free to use with comprehensive built-in tools for PDF editing, spreadsheets, and word processing.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft Office keep signing me out on Windows 11?

This usually occurs due to conflicts in the Windows Credential Manager, outdated Office software, or ongoing backend Microsoft 365 service outages affecting account authentication tokens.

Can this recurring sign-in issue affect my saved files?

Yes. When Office loses its authentication state, cloud-dependent features like OneDrive AutoSave may disable without immediate notification, potentially causing your work to save locally instead of syncing to the cloud.

Do I need to reinstall Windows to fix the Microsoft 365 sign-in loop?

No, reinstalling Windows is generally unnecessary. This issue is typically tied to Microsoft's account authentication services or local cached credentials, which can be resolved by clearing the Credential Manager or waiting for Microsoft to resolve backend service issues.