1. The error is displayed as a pop-up window, and the document is automatically closed;
2. If you click "Repair", you will not be able to access it;
3. Just right-click the PPT file that can't be opened, and click Properties → Unlock → OK.
Reason: This file is from another computer, and our own system is WIN7, so it may be blocked to help protect the computer. This method can only be solved temporarily.
Method one,
1. Open IE browser, click Tools menu, click Internet Options, and then select Advanced tab;
2. Find "Check the signature of the download program", uncheck it and confirm;
Method two,
1. Open a ppt and click Options in File;
2. Continue searching: Trust Center-Trust Center Settings-Protected View;
3. In the pop-up window, just uncheck the three check options under "Protected View" on the right.
The above is the detailed operation steps for the ppt of win7 system to fail to open, prompting that there is something wrong with the PPT content. I hope the above tutorial content can help everyone.