Office Apps Crashing

Fix Excel and Word Crashing After Windows 11 or McAfee Update

Chanuka GeekiyanageChanuka Geekiyanage Nov 2, 2026 869 views

Question details

The user needs to resolve persistent crashes in Microsoft Excel, Word, and PowerPoint that started occurring after a Windows 11 upgrade and a McAfee update.

How to Fix Excel and Word Crashing After Windows 11 or McAfee Updates
Product
Microsoft Office
Device & OS
Windows 11
Scenario
Opening and using Office applications following recent operating system or third-party security software updates.
Observed behavior
Office applications repeatedly report a problem and force close. Standard repairs fail, reinstallations trigger error code 30015-11 (3221549173), and the user encounters repeated Windows Security and d.docs.live.net sign-in prompts.
Before you start

Before troubleshooting, ensure you have your Microsoft account credentials readily available, as you may need to sign in again after reinstalling Office or clearing cached credentials.

Solution 1Recommended

Update and Configure McAfee Security Software

McAfee updates can sometimes conflict with Office applications. Ensuring it is fully updated or adjusting its settings can identify and resolve the conflict.

Third-party antivirus programs frequently monitor application behavior. An outdated security definition might falsely identify newly updated Windows 11 or Office processes as threats, causing the apps to close unexpectedly.

1
Update McAfee

Open McAfee from your system tray, navigate to settings, and manually check for the latest software and virus definition updates.

2
Temporarily disable scanning

Turn off the real-time scanning feature temporarily to test if Word and Excel open without crashing.

3
Whitelist Office applications

If the apps work with the scanner disabled, add the Microsoft Office executables (such as WINWORD.EXE and EXCEL.EXE) to McAfee's exclusion or whitelist settings.

Update and Configure McAfee Security Software
Antivirus Warning: Only disable your antivirus software temporarily to diagnose the issue. Always remember to re-enable it to keep your system protected from actual threats.
Free Microsoft Office alternative

Switch to WPS Office for a Stable, Crash-Free Experience

If Microsoft Office continues to crash on Windows 11 despite your best troubleshooting efforts, try WPS Office. It is a highly compatible, lightweight, and free alternative that works seamlessly on modern Windows systems without causing complex registry or security conflicts.

Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx).Lightweight installation that avoids complex registry conflicts and common Windows update errors.Highly stable performance on Windows 11, minimizing random application crashes.Free to use with a familiar, easy-to-navigate tabbed interface.
microsoft office alternative - wps office

Frequently Asked Questions

Why is Microsoft Office suddenly crashing after a Windows 11 update?

Windows updates can sometimes alter system files, permissions, or drivers that Microsoft Office relies on. They can also introduce temporary incompatibilities with third-party antivirus software like McAfee, causing Office processes to be blocked and forcefully closed.

What does Office installation error code 30015-11 mean?

Error code 30015-11 typically indicates a failure to write to the Windows registry or a conflict with corrupted existing Office files. It often requires using the official Microsoft Support and Recovery Assistant (SaRA) to completely clean the system before attempting to reinstall.

How do I stop the d.docs.live.net sign-in prompt in Word?

This prompt occurs when Office struggles to authenticate your OneDrive connection. You can resolve it by opening the Windows Credential Manager, deleting any cached credentials related to Microsoft Office or d.docs.live.net, and signing back in through the application.