There are different methods available to recover corrupted PPT.
Move the PowerPoint to different location : this is first and very useful troubleshooting method to repair PPT problems . Copy presentation and paste it on other computer hard.
Method 2: Open presentation in MS word document:
If you have tried above method, but still facing same problem then try to open corrupt PowerPoint in MS Word. Follow this below steps:
• Open MS Word.
• Click on Open button of File menu.
• Select Files of type box and navigate to your corrupt file, Open it.
Method 3: Use Safe Mode
To see your presentation in safe mode, first of all you will have to run PowerPoint in safe mode. Follow these steps to do it...
• Click on Start button.
• Select Run & type "C:\Program Files\Microsoft Office\your MS office version\Powerpnt.exe" /safe".
• Now press OK button.
• Restart your system, during restart press & hold F8 button to start window in safe mode.
• Open & see your presentation.
Method 4: Try Third part repair Tool: If all above method fail to fix corrupted presentation then you can try third party PowerPoint Restore Toolbox