PowerPoint Add-In Causing Crashes: How to Disable COM Add-Ins

If PowerPoint crashes, freezes, or fails to open after installing a third-party tool, a COM add-in is likely the cause. COM add-ins are external programs that integrate with PowerPoint, such as citation managers, screen recorders, or slide libraries. A buggy or outdated add-in can conflict with PowerPoint’s core processes, leading to instability. This article explains how to identify and disable problematic COM add-ins in PowerPoint for Windows 10 and Windows 11.

Why COM Add-Ins Cause PowerPoint to Crash

COM add-ins run inside the same memory space as PowerPoint. If the add-in code contains a memory leak, an infinite loop, or an incompatible call to a PowerPoint object model, the entire application can freeze or crash. This is different from standard PowerPoint macros or VBA code because add-ins load automatically on startup and remain active throughout the session.

Common crash scenarios include:

• PowerPoint fails to open at all, showing a splash screen then disappearing.
• PowerPoint opens but freezes within 30 seconds.
• PowerPoint crashes when saving, closing, or exporting a presentation.
• A dialog box appears with the error “PowerPoint has stopped working” and then the program closes.

The root cause is almost always a single add-in that was not tested against the current PowerPoint version or Windows update. Disabling all add-ins and re-enabling them one by one isolates the faulty component.

Steps to Disable COM Add-Ins in PowerPoint

Follow these steps to disable COM add-ins. Start with Safe Mode to confirm add-ins are the problem, then use the Options menu to disable them permanently.

Step 1: Start PowerPoint in Safe Mode

1. Press and hold the Ctrl key
   While holding Ctrl, double-click the PowerPoint shortcut on your desktop or Start menu. Keep holding the key until a dialog box appears asking if you want to start in Safe Mode.
2. Click Yes
   PowerPoint opens without any add-ins loaded. If PowerPoint runs normally in Safe Mode, add-ins are causing the crashes.

Step 2: Open the Add-Ins Management Window

1. Go to File > Options
   In PowerPoint, click the File tab in the top-left corner, then click Options at the bottom of the left panel.
2. Select the Add-Ins category
   In the PowerPoint Options dialog, click Add-Ins in the left sidebar.
3. Change the Manage dropdown to COM Add-ins
   At the bottom of the Add-Ins page, locate the Manage dropdown list. Select COM Add-ins from the list, then click the Go button next to it.

Step 3: Disable All COM Add-Ins

1. Uncheck every add-in in the list
   The COM Add-Ins dialog shows all installed add-ins with a checkbox next to each. Clear every checkbox to disable all add-ins.
2. Click OK
   PowerPoint closes the dialog. Restart PowerPoint normally to see if the crashes stop.

Step 4: Re-Enable Add-Ins One at a Time

1. Open the COM Add-Ins dialog again
   Repeat the steps in Step 2 to return to the COM Add-Ins list.
2. Check the first add-in and click OK
   Enable only one add-in by checking its box. Click OK and use PowerPoint for several minutes. If no crash occurs, the add-in is safe.
3. Repeat for each remaining add-in
   Enable the next add-in, test, and continue until you find the one that causes the crash. Leave the crashing add-in disabled permanently.

If PowerPoint Still Has Issues After Disabling Add-Ins

Some add-ins are deeply integrated and may not appear in the COM Add-Ins list. If Safe Mode works but disabling all visible add-ins does not fix the crash, try the following three approaches.

PowerPoint Add-Ins List Is Empty but Crashes Persist

An add-in might be registered in the Windows Registry but missing from the PowerPoint dialog. Open the Registry Editor by typing regedit in the Windows search box and pressing Enter. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\PowerPoint\AddIns. If this key exists, you will see subkeys for each add-in. Right-click the subkey that matches the add-in name and select Delete. Backup the registry before making changes.

PowerPoint Crashes Even in Safe Mode

If Safe Mode also crashes, the problem is not an add-in. Try repairing Office: open Control Panel > Programs and Features, select Microsoft 365 or Office, click Change, then select Quick Repair. If that fails, run the Office Removal Tool and reinstall Office entirely.

Add-In Keeps Re-Enabling After Restart

Some add-in installers have a startup task that re-registers the add-in each time PowerPoint launches. Uninstall the add-in from Control Panel > Programs and Features. Then run a registry cleanup: in regedit, delete any remaining keys under HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\PowerPoint\AddIns that reference the uninstalled add-in.

PowerPoint Add-In Disable Methods: Options Menu vs Safe Mode vs Registry

Item	File > Options > Add-Ins	Safe Mode (Ctrl key)	Registry Editor
Ease of use	Simple, no technical skill required	Very simple, quick test	Requires registry knowledge
Permanence	Disables add-in until re-enabled	Temporary, only for that session	Permanent removal of registry entry
Add-in types covered	Only add-ins shown in the list	All add-ins, including hidden ones	Add-ins registered in the registry
Risk	None	None	Risk of breaking other Office features if keys are deleted incorrectly

Use Safe Mode first to confirm add-ins are the cause. Then use the Options menu for permanent disabling. Only use the Registry Editor if the add-in does not appear in the Options menu.

You can now disable any COM add-in that crashes PowerPoint. Test each add-in individually to keep only the tools you need. For add-ins that are essential but still cause issues, check the vendor’s website for an updated version compatible with your PowerPoint and Windows build.