In Word, Excel, or PowerPoint for Windows, open the file you want to protect with a password, then select File and Info. You should see a Protect option at the top of the next list: Click this ...

Do you want to protect folders and files with a password? Here's how on Windows 11.

With these tools, you can significantly reduce the attack surface of Windows and effectively protect it against viruses and hackers.

If you have a confidential PDF you want to password protect, you have a few ways to do that on your Windows 11 PC. You can use a desktop app or a web-based tool to encrypt your PDF files.