Sign-in & Login Problems

Fix Microsoft 365 Apps That Keep Signing You Out on Windows

Ayan Masood Sep 28, 2026 869 views

Question details

The user is experiencing repeated, unexpected sign-outs from Microsoft 365 applications and associated websites.

How to Fix Microsoft 365 Apps That Keep Signing You Out

Product: Microsoft 365 (Word, OneNote)
Device & OS: Windows 10 or Windows 11
Scenario: Using Microsoft 365 desktop applications and web services for daily productivity tasks.
Observed behavior: The applications repeatedly drop the active session, forcing the user to sign in again to continue working or syncing files.

Before you start

Save any open documents locally to your hard drive to prevent data loss in case the application forces a sign-out before syncing to OneDrive. Ensure you know your Microsoft account password and have access to your two-factor authentication device.

Solution 1

Switch to a Different Network or Mobile Hotspot

An unstable internet connection can interrupt your secure session, causing Microsoft 365 to sign you out automatically. Testing a different network helps rule this out.

Authentication tokens require a stable connection to Microsoft servers. Brief network drops can invalidate these tokens.

Disconnect from Current Wi-Fi

Click the Network or Wi-Fi icon in your Windows taskbar, select your current network, and click 'Disconnect'.

Connect to a Hotspot

Enable the mobile hotspot feature on your smartphone. On your Windows PC, select the hotspot from the network list and click 'Connect'.

Test the Application

Open Microsoft Word or OneNote, sign in to your account, and use the app normally to see if the session remains stable.

Solution 2Recommended

Create a New Local Administrator Account

If network stability isn't the problem, a corrupted Windows user profile might be causing the authentication failures. Testing on a clean local profile isolates the issue.

Free Microsoft Office alternative

Try WPS Office for a Stable, Hassle-Free Experience

If Microsoft 365 authentication issues continue to disrupt your workflow, consider switching to WPS Office. It's a lightweight, free alternative that offers excellent compatibility with Microsoft formats, a familiar user interface, and allows you to work seamlessly offline without constant sign-in interruptions.

1. Download the Installer: Visit the official WPS Office website and download the free installation package for Windows.
2. Open Your Files: Install the software and double-click your existing Microsoft Office files to open them directly in WPS Office with full formatting retained.

No constant online sign-in required to view, edit, or save local documents.Highly compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx).Lightweight installation that consumes significantly fewer system resources.All-in-one suite integrating Writer, Presentation, Spreadsheet, and PDF tools.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft 365 keep asking me to sign in?

This is typically caused by an unstable internet connection dropping the authentication token, a corrupted Windows user profile, or outdated cached credentials conflicting in the Windows Credential Manager.

Will creating a new Windows local account delete my existing files?

No. Creating a new local administrator account simply adds a secondary environment to your PC. Your existing files, desktop shortcuts, and primary user profile remain completely untouched and accessible.

How can I clear cached Microsoft 365 credentials in Windows?

Open the Windows Start menu, type 'Credential Manager', and open it. Click on 'Windows Credentials', scroll down to find any entries starting with 'MicrosoftOffice16', click them, and select 'Remove'. Restart your computer afterward.

Login & Account Issues