There are plenty of free third party tools which offer to hide/lock files and folders but most come with some sort of limitation or security flaw – for example; some can be quite easily overcome by simply booting into Safe Mode. However, there is still a way to password protect files in recent editions of Windows, provided you have a specific type of free, third party program on hand.
That program is an archive tool, such as 7-Zip, PeaZip, or Bandizip, which I’m guessing many users (if not most) would already have. Almost all of these types of free tools will allow you to create a password protected archive. In this guide I’m going to show you how to password protect files using the portable version of Bandizip but the process should be similar using any of the popular free archive tools. I chose Bandizip as my default archive tool because it’s simple, free, and portable – three of my favorite adjectives when looking at software.
Create a Password Protected Archive with Bandizip
To start the process click New:
Drag and drop the files you want to protect into the Add Files to Archive box. Or alternatively, click the Add button, browse to and select the files. Next, choose your format – you can use any of the supported compression formats but I think it’s better to stick with the zip format which is pretty much universal. Now click More Options:
Now you can set your preferred compression level. Bandizip is set to 2-Normal Compression by default but, unless you particularly need to compress the files in order to save space, and considering our main goal here is not compression but to allow password protection, setting compression level to 0-No Compression is quite acceptable:
Next, enable the Enter Password option: choose a strong password and type it into both boxes. *Do not forget the password or you will not be able to access the files, best to write it down and keep it somewhere safe.
Once this process has been completed you’ll end up with two copies of the files – one copy in the new zip folder plus the originals. Obviously, once the archive has been created, you’ll need to delete the originals, otherwise it sort of defeats the purpose. You can either enable the option to Delete files after archiving and Bandizip will automatically do that for you or you can manually delete them yourself.
Okay, you’re all ready to go, just click the Start button to create your password protected archive… and voila!
Nobody will be able to open any of the files contained within the zip folder unless the correct password is entered. A quick and easy method to password protect sensitive files.