How can I lock my PowerPoint presentation to prevent unauthorized access or editing?

To lock your PowerPoint presentation and prevent unauthorized access or editing, you can utilize the built-in security features provided by PowerPoint. Follow these steps to secure your presentation:

1. Open your PowerPoint presentation.
2. Click on the “File” tab in the top left corner of the screen.
3. From the drop-down menu, select “Protect Presentation” and then choose “Encrypt with Password.”
4. A dialog box will appear, prompting you to enter a password. Choose a strong and unique password that is not easily guessable.
5. Re-enter the password in the confirmation box and click “OK.”
6. Your presentation is now password protected. Whenever someone tries to open the file, they will be prompted to enter the password you set.
7. Additionally, if you want to prevent unauthorized editing, you can also restrict permissions by selecting “Restrict Editing” under the “Protect Presentation” option in the “File” tab.
8. In the “Restrict Editing” pane, you can specify the editing permissions you want to allow or disallow, such as formatting changes, content copying, or commenting.
9. Once you have set the desired editing restrictions, click on “Yes, Start Enforcing Protection” and enter a password if prompted.
10. Your PowerPoint presentation is now locked and protected from unauthorized access and editing.

By following these steps, you can ensure the security and integrity of your PowerPoint presentation, safeguarding it from unauthorized access or modifications.