This wikiHow teaches you how to add a password to lock a Word document. This can be done on a Windows or Mac version of Microsoft Word, although you can't password protect a document from within OneDrive.
Step
Method 1 of 2: On Windows Computer
Step 1. Open the desired Word document
Double-click the Microsoft Word document that you want to password protect. The document will open in Microsoft Word.
If the document has not been created, run Microsoft Word, then click Blank documents, and create the document before you continue.
Step 2. Click the File tab in the upper-left corner of the Microsoft Word window
Menu File will be opened.
Step 3. Click Info
This tab is at the top of the column of options on the left side of the window.
If nothing happens after you click Info, means that you are already in the Info tab.
Step 4. Click Protect Document
This padlock-shaped icon is below the document name at the top of the page. A drop-down menu will be displayed.
Step 5. Click Encrypt with Password
This option is at the top of the drop-down menu. This will open a window.
Step 6. Enter the password
Type the desired password into the "Password" text field in the middle of the window.
Step 7. Click OK located at the bottom of the pop-up window
Step 8. Enter the password again, then click OK
This is to confirm the password you have chosen. Once the document is closed, no one will be able to open it without entering the password.
You can still delete the document without having to type in the password or open it first
Method 2 of 2: On Mac Computer
Step 1. Open the desired Word document
Double-click the Microsoft Word document that you want to password protect. The document will open in Microsoft Word.
If the document has not yet been created, run Microsoft Word and create the document before you continue
Step 2. Click the Review tab located at the top of the Word window
By clicking Review, a toolbar will appear below the row of tabs at the top of the window.
Step 3. Click Protect Document
It's a lock-shaped icon on the right side of the toolbar. A drop-down menu will be displayed.
Step 4. Enter the password
Type the desired password into the "Password" field at the top of the window. With this action, other people will not be able to open the document if they do not enter the password.
If you want the document to be immutable, type the password into the text field at the bottom of the window
Step 5. Click the OK button at the bottom of the pop-up window
Step 6. Enter the password again, then click OK
This is to confirm the password you have chosen. Once the document is closed, no one will be able to open it without entering the password.