Presentation without some slides

[aliaconner]

I have trouble situation. I created huge MS PowerPoint presentation. It was about 20 slides. And some of slides were disappeared, I couldn't understand what was the reason. I only opened it again, but of course, these slides didn't return. I have lack of ideas...

[Paul_Hossler]

Do the missing ones show in slide sorter view?

Maybe they're just marked 'Hidden'

[AlesWolf]

I have trouble situation. I created huge MS PowerPoint presentation. It was about 20 slides. And some of slides were disappeared, I couldn't understand what was the reason. I only opened it again, but of course, these slides didn't return. I have lack of ideas...

Looks like your powerpoint document was temporarily crashed and in that moment you lost your pages. I would suggest you Microsoft PowerPoint Software (https://www.pptxrepairtoolbox.com/) - IT specialists from MS, created it especially for hard cases with presentations, it is more effective than Open&Repair function that built-in in Application.

To repair pptx, follow the below mentioned steps:

1. Click File, then choose Save As.
2. Save the PowerPoint file at a new destination with the same or a new name.

[John Wilson]

"IT specialists from MS, created it especially"

I don't think so

John Wilson
Microsoft MVP