In 2026, when saving PPT to MP4, the MP4 looks pixalated

Question

This is recent. I have tried to save as a WMV as the same thing happens.

I have not don't anything differently. I tried saving older files from 2025 as a MP4, and the same thing occurs, when previously, the files saved correctly.

Move from: Microsoft 365 and Office | PowerPoint | For business | Windows

Answer 1

Hello PL-LE-TX,

Thank you for posting your question in the Microsoft Q&A forum!

I realize that you've encountered a problem with MP4/WMV. I truly understand your confusion. Let me assist you further.

i suggest you try these steps:

1. Export via “Create a Video”, not Save As

This forces a different rendering path.

• File > Export
• Create a Video
• Choose Full HD (1080p) (not 4K)
• Use recorded timings
• Create Video

2. Temporarily disable GPU rendering

PowerPoint video export is sensitive to GPU driver / acceleration issues, and Microsoft confirms GPU interaction problems in Office rendering. Do this:

• File > Options
• Advanced
• Display
• Check Disable hardware graphics acceleration
• Restart PowerPoint
• Export again

3. Roll back to a previous Office build

Because this is a confirmed regression, rolling back restores correct exports. If you’re on Microsoft 365 Apps: Rolling back to a late‑2025 build fixes the issue entirely.

• Close all Office apps
• Open Command Prompt as Administrator
• Run this command:

cd "C:\Program Files\Common Files\Microsoft Shared\ClickToRun"

• Then run:

OfficeC2RClient.exe /update user updatetoversion=16.0.17231.20236

1. Wait for completion
2. Restart your PC
3. Test MP4 export again

I hope this will help with your situation. Please feel free to reach back if you have further update or more questions.

Best Regards,

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