Powerpoint won't save to PDF or save sometimes

If you have tried to save a document to multiple locations on your PC and that did not resolve the problem, the best option is to perform an online repair of your Office installation.

Before performing this process to ensure you do not loose the Office installation during the repair, please log into your Microsoft account on this link (https://account.microsoft.com/services/) and check to ensure your Office licence or Microsoft 365 subscription is listed correctly on your account.

Open the Settings App (gear icon on your Start Menu)

Go to Apps - Installed Apps, then scroll down to find Microsoft Office

Select that and choose Modify - Online Repair

That should fix any issues with your Office Installation.

Hi Kyra,

Since it started with PDF export and has now spread to saving in general, I would work through it in this order, testing a save after each step so you know which one fixed it.

1. Test with a new blank presentation. If a blank file saves fine, the problem is with that file, not PowerPoint. Try saving a copy of it with File, then Save a Copy, and see if the copy saves.
2. Save to a local folder, such as your Desktop, instead of OneDrive or a synced folder. If the local save works, the problem is with sync or the cloud location, not PowerPoint. Also check that you have free space on the drive and in OneDrive.
3. Update Office. In PowerPoint, go to File, then Account, then Update Options, then Update Now, and restart PowerPoint after it finishes.
4. Start PowerPoint in safe mode to rule out an add-in. Close PowerPoint, hold Ctrl while you open it again, and click Yes when it asks about safe mode. If saving works there, go to File, then Options, then Add-ins, and disable the COM add-ins one at a time.
5. Repair Office. Go to Windows Settings, then Apps, then Installed apps, find Microsoft 365, click the three dots, choose Modify, and run a Quick Repair first. If that does not help, run it again and choose Online Repair.
6. Check Controlled folder access in Windows Security. It can block Office from writing files. In Windows Security, go to Virus and threat protection, then Ransomware protection, and check whether PowerPoint is being blocked there.

If saving still fails after these steps, let me know what happens when you try to save, whether you see an error message, and whether the file is stored in OneDrive or on your computer. That will narrow it down further.

Thanks!