Fix PowerPoint Closing Unexpectedly When Locking Windows
Question details
The user needs to stop Microsoft PowerPoint from closing unexpectedly after locking their Windows computer.

- Product
- Microsoft PowerPoint
- Device & OS
- Windows
- Scenario
- Locking the Windows computer screen while a presentation file is still open.
- Observed behavior
- PowerPoint automatically terminates or crashes in the background without saving progress whenever the Windows session is locked.
Manually save any open presentations or enable AutoSave before locking your screen to ensure no data is lost during the troubleshooting process.
Update or Reconfigure Antivirus Software
Use this solution to prevent third-party security software, such as McAfee, from incorrectly terminating PowerPoint background processes when the system state changes.
Certain antivirus programs may monitor system memory and mistakenly flag background processes of Microsoft 365 applications as suspicious when the computer goes into a locked state. Keeping the antivirus software up to date ensures you have the latest exception rules from the security vendor.
Locate and open your installed antivirus software (such as McAfee) from the Windows system tray or Start menu.
Navigate to the settings or update section of the antivirus dashboard and click 'Check for Updates' to force the software to download the latest virus definitions and engine updates.
If updating does not resolve the issue, go to the firewall or real-time scanning exceptions list in your antivirus settings and manually add the PowerPoint executable file (POWERPNT.EXE) as a trusted application.

Verify Office Edition and Apply Updates
Check your specific Microsoft 365 Education account version and ensure the application is fully updated to resolve known software bugs.
Try WPS Office for a Stable Presentation Experience
If Microsoft PowerPoint continues to crash when you lock your Windows PC, consider switching to WPS Office. It provides a highly stable, lightweight, and free presentation application that functions flawlessly even during system state changes.

Frequently Asked Questions
Can McAfee antivirus cause PowerPoint to close automatically?
Yes, outdated versions of third-party antivirus software like McAfee can sometimes misidentify system resource changes during a Windows lock as a security threat, resulting in the termination of background processes like PowerPoint. Forcing an update to the antivirus software usually resolves this conflict.
How can I recover my presentation if PowerPoint closed unexpectedly?
If AutoRecover was enabled, open PowerPoint, click on 'File', select 'Open', and click on 'Recover Unsaved Presentations' at the bottom of the Recent files list to retrieve your unsaved work.
Where do I find my specific Microsoft 365 Education version for IT support?
Open any PowerPoint presentation, click 'File' in the upper-left corner, and choose 'Account'. Your exact subscription details, version, and build number will be displayed on the right side under Product Information.




