Answer:
1. Navigate to the folder you want to password protect.
2. Right-click on the folder.
3. Select Properties from the menu. On the dialogue that appears, click on the General Tab.
4. Click on the Advanced button, then select Encrypt content.
5. Double click on the folder to ensure you can access it.
or
1. Select the file or folder you want to encrypt.
2. Right-click on the file or folder and select Properties.
3. On the General Tab, click on the Advanced button.
4. Check the box for the " Encrypt content to secure data " option, then click OK.
Thanks !!!!