This post will show you how to lock a file or folder in Windows 11/10. You can use the built-in method to encrypt folders or third-party apps.

How to Lock a PDF File in a Cell on a Excel Worksheet. Microsoft Excel lets you embed content from other applications, including PDF files. ... Click on it to tick the box, ...

Click on Encrypt the file only option from the new dialog box and select OK.; The above steps will allow users to encrypt the target Notepad file, adding a security key to be required every time it is ...

How to Protect Your Files From Ransomware. It's a growing threat for individual users and businesses alike—but there are ways to protect yourself. Photograph: Martin Poole/Getty Images ...

To prevent this, Google Drive lets you lock files for editing, ensuring only you can modify them. This guide will show you how to secure your files and maintain full control.