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Struggling with Outlook 2016 Calendar Issues? Here’s the Quick Fix You Need
Microsoft rolled out update KB5002700 for Office 2016 on April 8, 2025. The goal? To patch several security vulnerabilities. The result? A frustrating calendar crash for many users. Let’s break it down and get you back on track.
What’s in Update KB5002700?
This update addressed critical security flaws, including:
- Remote code execution vulnerabilities in Excel (CVE-2025-29791, CVE-2025-29816).
- Privilege elevation vulnerabilities (CVE-2025-29792).
- Security feature bypass issues in Word (CVE-2025-27745).
While these fixes are essential for protecting your system, they came with an unintended side effect: Outlook 2016’s calendar crashes after the update.
The Problem: Calendar Access Blocked
Imagine this: you open Outlook, click on your calendar, and—bam! The app crashes. That’s exactly what users like Jörg (a German IT professional) reported after installing KB5002700. This issue affects both Windows 10 (22H2) and Windows 11 (24H2), regardless of your system setup.
Here’s what happens:
- You select the calendar tab in Outlook.
- The calendar flashes briefly on the screen.
- Outlook shuts down completely.
This isn’t just an isolated glitch; multiple users have confirmed it across different environments.
The culprit? A seemingly minor feature: weather integration in the calendar view. Yes, that little weather forecast at the top of your calendar is causing all this chaos. When enabled, it conflicts with the new update and triggers a crash.
The Workaround: Disable Weather Integration
Thankfully, there’s a quick fix that doesn’t require uninstalling the update or diving into complex troubleshooting steps. Follow these simple instructions:
- Open Microsoft Outlook 2016.
- Go to File > Options > Calendar.
- Scroll down to the Weather section at the bottom of the page.
- Uncheck the box labeled “Show weather.”
- Click OK to save your changes.
That’s it! Disabling this feature stops the crashes and restores full access to your calendar.
A Permanent Fix Is Here
Microsoft released a follow-up update (KB5002623) on April 10, 2025, to address these crashes directly. If you haven’t already, install this update to resolve the issue without needing the workaround.
Software updates are essential for security, but they can sometimes introduce unexpected problems. When that happens, simple solutions like disabling a feature can save hours of frustration. If you’re still facing issues after trying these steps, consider reaching out to Microsoft Support or checking their forums for additional guidance.