How to Lock a Word Document

By Kefa Olang

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With Microsoft Word--one of the most popular word processing programs--you can create, edit and save documents. To protect your privacy and important documents, Microsoft Word enables you to lock your document using simple password protection. It is a feature that comes in handy if you have personal information such as bank information, a password list, or proposal. Lock your document and prevent unauthorized users from making changes to it.

Step 1

Open the Microsoft Word document that you want to lock.

Step 2

Click the "Tools" menu on the top and click "Options" to launch the document options window.

Step 3

Click the "Security" tab. Type the password you want to use to lock the document in the "Password to open" window. Type a file-sharing password if you have configured your computer for file sharing. Specify whether you want to make the document a read-only file. Click "Advanced" if you want to add file encrypting. Select the encrypting option you want and click "OK."

Step 4

Click "OK" to save the changes and lock the document. Next time you open the document, Microsoft Word prompts you to enter the password you created.