Alert: KB5002700 Crashes Office 2016 Word, Excel, Outlook

The April 8, 2025, KB5002700 update has caused Office 2016 applications (Word, Excel, Outlook) to crash for some users. This guide provides solutions to uninstall the problematic update and recover unsaved work.

Resolving Office 2016 Crashes After KB5002700 Installation

The KB5002700 update, while intended to improve security and Office components, has resulted in unexpected crashes. Microsoft acknowledges the issue and is working on a resolution. A temporary fix involves uninstalling the update using the command prompt. Note that this update doesn't appear in standard Windows Update history.

Uninstalling KB5002700:

This process requires identifying the GUIDs for both your Office 2016 installation and the KB5002700 update itself.

1. Finding the Office 2016 GUID:

• Open the Registry Editor (regedit in the Run dialog, Win R).
• Navigate to:
  • 32-bit OS: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
  • 64-bit OS: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall
• Locate the Office 2016 entry (e.g., "Microsoft Office Professional Plus 2016"). The GUID is a long string enclosed in curly braces {}. Note this GUID.

2. Finding the KB5002700 Update GUID:

• Download the KB5002700 update package from the Microsoft Update Catalog.
• Extract the MSP file to a known location (e.g., C:\KB5002700).
• Find the MSP file's properties. The GUID (or revision number) is listed under the Details tab. Note this GUID.

3. Removing the Update:

Open Command Prompt as administrator and execute this command, replacing placeholders with your actual GUIDs:

%windir%\System32\msiexec.exe /package {Office GUID} /uninstall {Update GUID} /qn

Restart your computer.

Fixing Outlook Calendar Crashes:

If Outlook crashes specifically when accessing the calendar, try this:

• Open Outlook, go to File > Options > Calendar.
• Uncheck "Show weather on the calendar".
• Click "OK".

Recovering Unsaved Files:

If crashes resulted in unsaved work, check these locations for automatic backups:

• C:\Users\username\AppData\Roaming\Microsoft\Word
• C:\Users\username\AppData\Local\Microsoft\Office\UnsavedFiles

Alternatively, in Word or Excel, try File > Info > Manage Document > Recover Unsaved Documents/Workbooks. For more extensive recovery from deleted files, consider using data recovery software like MiniTool Power Data Recovery.

Conclusion:

Uninstalling KB5002700 via the command prompt is a temporary solution for Office 2016 crashes. Remember to back up your work regularly to mitigate data loss.

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