Office Apps Freezing

Fix Adobe Send & Track Add-In Freezing Outlook 2016 or Office 365

John Wilson Oct 22, 2026 869 views

Question details

Users need to resolve an issue where Microsoft Outlook constantly freezes or crashes due to the Adobe Acrobat Send & Track add-in being enabled.

Fix Adobe Send & Track Add-In Freezing Outlook 2016 or Office 365

Product: Microsoft Outlook 2016, Office 365, Adobe Acrobat
Device & OS: not provided
Scenario: Using Microsoft Outlook with the Adobe Acrobat Send & Track add-in enabled.
Observed behavior: Microsoft Outlook freezes or crashes unexpectedly. The application functions normally only when the Adobe add-in is disabled.

Before you start

Ensure you have saved all drafts and temporarily close Microsoft Outlook before attempting to install updates or repair the application.

Solution 1Recommended

Update Adobe Acrobat and Your Operating System

Installing the latest updates for Adobe Acrobat and your operating system is the most effective way to resolve compatibility issues with Outlook add-ins.

Software conflicts between newer versions of Microsoft Office and older versions of Adobe Acrobat frequently cause add-in crashes. Updating both the application and your system environments ensures compatibility.

Open Adobe Acrobat

Launch the Adobe Acrobat application on your computer.

Check for Acrobat updates

Navigate to the top menu and select Help, then click on 'Check for Updates'. Follow the prompts to install any pending updates.

Update your operating system

Open your system settings (Windows Update or macOS Software Update) and install any available system updates.

Restart and test

Restart your computer to apply all changes, then open Microsoft Outlook to check if the freezing issue is resolved.

Update Adobe Acrobat and Your Operating System

Update Completed: Keeping your software updated not only prevents crashes but also ensures you have the latest security patches.

Solution 2

Repair Microsoft Office via Control Panel

Use the built-in Microsoft Office repair tool to fix any corrupted application files that might be causing Outlook to crash.

Solution 3

Disable the Add-in Manually

Temporarily disable the Adobe Send & Track add-in from within Outlook to restore normal functionality.

Free Microsoft Office alternative

Avoid Add-in Crashes with a Lightweight Office Alternative

If you are tired of Microsoft Office applications freezing or crashing due to bulky third-party add-ins, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative with built-in PDF functionalities, eliminating the need for heavy third-party plugins.

1. Download the installer: Visit the official WPS Office website and download the free installation package.
2. Install WPS Office: Run the downloaded file and follow the simple on-screen instructions to install the suite.
3. Open and edit files: Launch WPS Office and directly open your existing Microsoft Office and PDF files to continue working seamlessly.

Highly compatible with Microsoft Word, Excel, and PowerPoint formatsLightweight architecture minimizes freezing and application crashesBuilt-in PDF tools for reading, editing, and conversion without external add-insFamiliar user interface makes migration seamless and effortless

microsoft office alternative - wps office

Frequently Asked Questions

Why does the Adobe Send & Track add-in cause Outlook to freeze?

This freezing typically occurs due to version incompatibilities or software conflicts between recent Microsoft Office updates and older versions of the Adobe Acrobat application.

Can I manually disable the add-in if it is embedded in Group Policy?

No. If your organization's IT department manages the add-in via Group Policy, the option to disable it will be locked. You must contact your system administrator to have it removed or updated.

Will running the Microsoft Office repair tool delete my emails?

No, repairing Microsoft Office from the Control Panel only scans and fixes the core application files and registry keys. Your emails, contacts, and personal account settings remain completely untouched.

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