Solution: First click the "File" tab in the top navigation bar and select "Options" in the drop-down list; then find "Trust Center" and select "Trust Center Settings"; finally select "Protected View" and uncheck the three options of "Protected View".
The operating environment of this tutorial: Windows 7 system, Microsoft Office PowerPoint 2013 version, Dell G3 computer.
Use office to open ppt documents (mostly downloaded from the Internet or email, local files rarely encounter this problem), this box will pop up, prompting that there is a problem with the content, you can try to repair it.
After clicking Repair, the following interface will pop up, prompting that it cannot be read
Encountered this kind of problem . You can first open the office ppt (this article takes the 2013 version as an example), click "File" in the upper left corner, enter the menu and find "Options"
After entering the "Options" menu, find "Trust Center Settings" in "Trust Center".
Select "Protected View" and see 3 options with check marks on the right.
Cancel all three check marks and click OK in the lower right corner. That's OK. Reopen the ppt document and it will be ready to use.
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