How to Fix Microsoft Office Apps Freezing During Sign-In on Windows 10
Question details
The user needs to fix an issue where Microsoft Office applications freeze completely when attempting to sign in or activate using a school or work email address.

- Product
- Microsoft Office
- Device & OS
- Windows 10
- Scenario
- Activating Office apps or signing in to open SharePoint files via desktop applications.
- Observed behavior
- After entering the email address and clicking Next, the application becomes completely unresponsive and freezes.
Ensure your computer is connected to a stable internet connection and that you have your correct Microsoft account credentials ready before attempting to repair or reinstall Office.
Update and Repair the Microsoft Office Installation
Running the built-in repair tool can fix corrupted application files that cause the sign-in screen to freeze.
Windows includes a built-in utility to repair installed programs. Performing an Online Repair for Microsoft Office is highly recommended as it replaces corrupted installation files that often trigger activation freezes.
Click the Start menu, type 'Settings', and hit Enter. Navigate to 'Apps', then select 'Apps & features' from the left-hand menu.
Scroll down the list of installed applications until you find your Microsoft Office installation (e.g., Microsoft 365 or Office 2019). Click on it and select 'Modify'.
When the repair window appears, select 'Online Repair' for a comprehensive fix (requires an internet connection) and click 'Repair'. Follow the on-screen prompts to complete the process.

Start Windows in a Clean Boot State
A clean boot helps identify if third-party background programs or startup items are conflicting with the Office activation process.
Test with a New Windows User Profile
If the current user profile is corrupted, creating a fresh profile can bypass the freezing issue during Office sign-in.
Use WPS Office as a Lightweight Alternative
If Microsoft Office continues to freeze or fails to activate on your PC, consider switching to WPS Office. It is a free, lightweight, and highly compatible alternative that lets you open, edit, and create documents without frustrating activation errors or sign-in freezes.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button for Windows.
- 2. Install WPS Office: Run the downloaded installer and follow the quick setup wizard to install the suite on your PC.
- 3. Open Your Files: Launch WPS Office and directly open your school or work documents to resume your work instantly.

Frequently Asked Questions
Why does my Microsoft Office freeze when opening SharePoint files?
This usually happens when the desktop app attempts to authenticate your work or school account but encounters a corrupted cache or network conflict. Repairing Office or clearing Windows credentials often resolves it.
Will repairing Microsoft Office delete my personal files?
No, using the Quick Repair or Online Repair tools via Windows Settings only fixes the application files. Your personal documents, spreadsheets, and presentations will remain completely untouched.
What should I do if the clean boot doesn't fix the Office activation freeze?
If a clean boot fails, try resetting or restoring your PC to an earlier point, or use the Microsoft Support and Recovery Assistant tool to completely uninstall and cleanly reinstall Microsoft Office.
Can I use another Office suite to open my school files if MS Office won't work?
Yes, you can use highly compatible free alternatives like WPS Office to open, edit, and save your school or work documents without dealing with Microsoft's sign-in freezes or activation barriers.




