When you export a PowerPoint presentation to an MP4 or WMV video, one or more slides containing embedded HEVC High Efficiency Video Coding video clips may be missing from the output file. This happens because PowerPoint’s video rendering pipeline does not always handle the HEVC codec correctly during export. This article explains why the slide gets skipped and provides a set of targeted fixes you can apply in Windows 11 and Windows 10.
Key Takeaways: Fixing Skipped Slides During HEVC Video Export
- Install the HEVC Video Extensions from the Microsoft Store: Adds the codec PowerPoint needs to decode HEVC clips during export.
- File > Options > Advanced > Display > Disable slide show hardware graphics acceleration: Prevents GPU driver conflicts that cause PowerPoint to drop HEVC frames.
- File > Options > Advanced > Image Size and Quality > Do not compress images in file: Prevents PowerPoint from re-encoding the embedded video, which can skip the slide.
Why PowerPoint Skips a Slide With an Embedded HEVC Video
HEVC is a compressed video format that requires a specific decoder on the system. PowerPoint relies on the Windows Media Foundation framework to decode the video when you export to a standard MP4 file. If the HEVC decoder is missing, outdated, or conflicting with the GPU driver, the export engine fails to render that slide. PowerPoint then skips the slide entirely rather than showing a blank or a placeholder. The same problem can occur if the embedded video is set to play automatically but the export process cannot initialize the decoder in time.
The issue is most common on Windows 10 systems that do not have the official HEVC Video Extensions installed. Windows 11 includes a basic HEVC decoder, but it may not be enabled by default. Additionally, hardware graphics acceleration can interfere with the decoder when the GPU driver is not fully compatible with the HEVC pipeline.
Steps to Fix the Skipped Slide Problem
Install the HEVC Video Extensions From the Microsoft Store
- Open the Microsoft Store
Press the Windows key on your keyboard, type Microsoft Store, and press Enter. - Search for HEVC Video Extensions
In the Store search box, type HEVC Video Extensions and press Enter. - Select the official extension from the manufacturer
Look for the entry titled HEVC Video Extensions from Device Manufacturer or HEVC Video Extensions published by Microsoft Corporation. Avoid third-party codec packs. - Click Install
The download and installation take less than a minute. After installation, close the Store. - Restart PowerPoint and re-export the presentation
Open your presentation again. Go to File > Export > Create a Video. Choose MP4 as the format and click Create Video. Check whether the slide with the HEVC clip now appears in the exported video.
Disable Hardware Graphics Acceleration in PowerPoint
- Open PowerPoint Options
Click File > Options. - Go to the Advanced tab
In the left pane, click Advanced. - Scroll to the Display section
Under the Display heading, check the box labeled Disable hardware graphics acceleration. - Click OK and restart PowerPoint
PowerPoint will prompt you to restart. Close and reopen the program. - Test the export again
Export the presentation to video and verify that the skipped slide now appears.
Prevent PowerPoint From Compressing the Embedded Video
- Open the presentation and go to File > Options
Click File in the ribbon, then click Options. - Select the Advanced tab
Click Advanced in the left pane. - Locate the Image Size and Quality section
Scroll down to the Image Size and Quality section. - Check Do not compress images in file
Select the checkbox next to Do not compress images in file. This setting also affects embedded video files because PowerPoint treats the video frame as an image sequence. - Click OK and save the presentation
Press Ctrl+S to save the file. - Export the presentation to video
Go to File > Export > Create a Video and run the export.
Convert the HEVC Video to H.264 Before Embedding
- Open the HEVC video in a free converter tool
Use a tool like HandBrake or the built-in Clipchamp app in Windows 11. Load the HEVC file. - Choose H.264 MP4 as the output format
Select the H.264 codec and set the output container to MP4. - Convert the file
Click Start or Convert. Wait for the process to finish. - Delete the HEVC video from the slide and insert the new H.264 version
In PowerPoint, select the embedded HEVC video and press Delete. Go to Insert > Video > This Device and select the converted H.264 file. - Export the presentation to video
Run the export again. The slide should no longer be skipped.
If PowerPoint Still Skips the Slide After the Main Fixes
PowerPoint Exports a Blank Slide Instead of the HEVC Video
If the slide appears but the video area is black or blank, the HEVC decoder may be partially installed. Open the Microsoft Store and search for HEVC Video Extensions. Click the three dots next to the installed entry and select Repair. After repair, restart PowerPoint and export again.
The Exported Video Has Audio but No Video on the HEVC Slide
This indicates that the audio stream decoded correctly but the video stream failed. Open the HEVC video in a media player like VLC to confirm the video track plays. If it plays, the issue is the codec pipeline in PowerPoint. Disable hardware graphics acceleration as described earlier and ensure the HEVC Video Extensions are the most recent version.
PowerPoint Crashes During Export Instead of Skipping the Slide
A crash typically means the GPU driver is incompatible with the HEVC decoder. Update your GPU driver to the latest version from the manufacturer’s website. After updating, re-enable hardware graphics acceleration and test the export. If the crash persists, keep hardware acceleration disabled.
HEVC vs H.264: Export Reliability in PowerPoint
| Item | HEVC H.265 | H.264 AVC |
|---|---|---|
| Codec support in PowerPoint | Requires external decoder from Microsoft Store | Built-in, no additional installation needed |
| Export reliability | May skip slides or produce blank frames | Reliable across all Windows versions |
| File size of embedded video | Approximately 30-50% smaller than H.264 | Larger file size |
| GPU acceleration during export | Frequent conflicts with older GPU drivers | Stable with most GPU drivers |
| Recommended for PowerPoint export | Only if H.264 is not available | Recommended for all presentations |
After applying the fixes above, you can now export presentations that contain HEVC clips without losing any slides. If you frequently work with HEVC content, consider converting all embedded videos to H.264 MP4 before building your presentation. This eliminates the codec dependency entirely. As an advanced step, you can also use the PowerPoint Repair tool by running powerpnt.exe /safe from the Run dialog to reset the video renderer settings.