How to Encrypt Files, Folders, and Drives on Windows 10

How to Encrypt Files, Folders, and Drives on Windows 10

One of the best ways to protect your privacy is to encrypt important information on your computer. Whether you need to send personal information to someone, or simply want to make sure that no one who gets access to your computer can see stuff you would rather keep private, encryption is the way to go.

Happily, as a user of Windows 10, you have numerous options for encrypting information. In this guide we will show you ways to encrypt individual files, file folders (and all the files within them), even entire disk drives. Each approach has its own benefits and drawbacks, so we’ll cover those too. That way, you’ll have a better sense of which type of encryption you will need for various situations. Before we go further, here are a couple of points to keep in mind:

  • With Windows 7 officially unsupported now, and Windows 8 best forgotten as fast as possible, this guide deals only with the Windows 10 operating system.
  • If you are encrypting a file to share with someone else and need to give them the password, you should not send them that password using the same method that you send them the file. For example, if you plan to email them the file, it would be a big security risk to also email them the password. Ideally give them the password over the telephone, a secure messaging app like Signal or Wickr Me. At the very least send it via a different email service than the one you will use for the file.

Now let’s talk about when to use the three types of encryption that you can use:

  • Individual file encryption
  • Folder encryption
  • Hard drive / Disk encryption

Individual file encryption

As the name implies, individual file encryption refers to encrypting one file at a time. Each file has its own password or key.

Individual file encryption is great for files you plan to share or store in the cloud. Windows 10 users can encrypt individual files using a tool like 7-zip. You can also encrypt individual Microsoft Office files from within their apps, although this is better suited to casual person use than protection against serious adversaries.

Folder encryption

Next up is folder level encryption. This approach involves encrypting everything that is stored in a folder. Passwords or keys are assigned to the folder, not individual files.

Folder encryption is a great organizational tool. For example, you could create a different encrypted folder for each member of your family. Give Sally only the password for her folder, and Jimmy only the password for his, and each can have their own private space on the same device.

Note that storing a file in an encrypted folder doesn’t prevent you from also encrypting files individually.

Hard drive / Disk encryption

Hard drive or disk encryption protects the entire drive at once. To use a device with an encrypted hard drive you would need to enter the password or key when you logged on, or nothing on the disk would be accessible.

This kind of encryption is a good first line of defense in case of theft. If someone stole your laptop, or ripped the drives out of one of your servers, they would need to defeat the hard drive encryption to get any data at all.

You can still apply folder level encryption and individual file encryption to an encrypted disk.

Password management and file encryption

Before we dive into the details of file encryption, we need to make an important note on passwords. You need to be using a good password manager, along with good password hygiene.

Why is that?

Well, if you lose or forget the password for accessing your encrypted files, then they’ll probably be gone for good. A good password manager is critical. We’ve reviewed many options, including 1Password, LastPass, and many more.

See our guide on the best password managers for the top recommendations and step-by-step information for good password management.

Now that we’ve hit the basics, it is time for some specifics. Let’s start with…

How to encrypt files and folders on Windows 10

Your options for encrypting files and folders on Windows 10 devices depend on which version of Windows 10 you have. Windows 10 Pro and Enterprise users have a built-in encryption tool called the Encrypting File System (EFS). Any Windows 10 user, including those with the Home edition, can also use third-party apps such as 7-zip for file and folder encryption.

Beyond these options, Microsoft Office apps have a basic file locking / encryption feature built in, as does Adobe Acrobat. While we will be looking at all these options, you’ll really want to take a look at a new addition to the Windows 10 files and folders encryption scene: NordLocker.

new nordlocker image

We’ll round out our coverage of Windows 10 encryption by taking a look at this new, flexible, easy-to-use file and folder encryption system.

How to encrypt files and folders with the Encrypting File System (EFS)

The Encrypting File System (EFS) is built into the Professional and Enterprise versions of Windows 10. It is treated as an Advanced feature of the Windows File Explorer. This makes a lot of sense, since used carelessly, EFS can leave you with files you can never access again.

EFS does all its encryption work in the background, including automatically creating a File Encryption Key (FEK), and encrypting that key so only the account that encrypted the file can decrypt it. All this happens automatically and transparently.

Aside from a lock symbol that appears in the File Explorer next to a file or folder that is encrypted, there is no easy way to tell that a file or folder is encrypted with EFS.

Unfortunately, EFS has some quirks that make it a less than ideal choice for many uses. Knowing what these are will help you decide whether EFS is the answer to your Windows 10 file encryption needs:

  • EFS only works on drives formatted with NTFS.
  • If you move an EFS-encrypted file to a disk formatted with FAT32 or exFAT, it becomes decrypted.
  • If you move an EFS-encrypted file across a network, or send it with an email message, it becomes decrypted.

If these quirks haven’t scared you away, here’s how to encrypt files and folders with EFS:

    1. Launch Windows File Explorer and navigate to the file or folder you want to encrypt using EFS.
    2. Right-click the file or folder you want to encrypt.
    3. In the menu that appears, select Properties.
    4. In the General tab of Properties, find and click the Advanced button (it is circled in red in the following image).
      encrypt files on Windows
    5. In the Advanced Attributes dialog box that appears, set the Encrypt contents to secure data checkbox.
      how to encrypt windows files with efs
    6. Click OK until you return to the document window.

That is all you need to do, from now on, the encrypted file or folder will appear encrypted to anyone other than the user account that encrypted the item in the first place.

How to encrypt files and folders with 7-zip

7-zip is a freeware file compression program that can also encrypt files and folders using AES-256 encryption, which is the industry standard for most encrypted systems.

If you plan to use 7-zip to encrypt files or folders you should know that the process creates an encrypted copy of the file or folder. The original, unencrypted file or folder is unchanged.

If you are creating the encrypted item because you plan to send it somewhere, or store it in the cloud or something like that, this is fine. But if your goal is to protect the files and folders on your own device, this isn’t ideal.

In the rest of this section, we’ll first look at how to encrypt files and folders with 7-zip. After that we’ll talk about what else you need to do if your goal is to protect the files and folders on your own device.

The following instructions assume you already have 7-zip installed on your system. If not, you can download it here.

How to encrypt Windows 10 files and folders using 7-zip

  1. Right-click the file or folder you want to encrypt.
  2. In the shortcut menu that appears, select 7-Zip, then Add to archive…. This opens the Add to Archive window.
    how to encrypt files with 7-zip
  3. In the Archive field, enter the name for the archive you will create.
  4. In the Archive format list, select zip.
  5. In the Encryption section of the window, enter a strong password in the Enter password field, and again in the Reenter password field.
  6. In the Encryption Method list, select AES-256.
  7. Select OK. This creates the encrypted archive file, which appears in the same folder as the file or folder you encrypted.

What to do after you encrypt something with 7-zip

The result of encrypting something with 7-zip the way we did here is a zipped archive that is AES-256 encrypted. This archive appears in the same folder as the file or folder that you encrypted, alongside the original file or folder. What this means to you depends on what you plan to do with the encrypted file or folder.

If you created the archive to share copies of the file or folder, this is fine. Just send the archive to the recipient. Assuming they have 7-zip or a similar program on their system (and you securely conveyed the password to them somehow), they will be able to unzip the archive, then double-click the file to enter the password in a dialog box like this one:7-zip password required dialog box

Once they do that, the operating system should open the file in whatever app is appropriate, and the recipient can view it, or save it, or do whatever is necessary with it. Note that they will still have the encrypted files on their system as well.

If you created the archive to protect the files or folders on your system, you should skip down to the section titled, “Eliminate any possible unencrypted copies of the file” once you are done encrypting files and follow the instructions there to make sure no unencrypted copies of things are lying around where some snoop can find them.

How to encrypt Microsoft Office files on Windows 10

Some applications now have options to encrypt the types of files they themselves use. For example, Microsoft Word can encrypt Word files, and Adobe Acrobat can encrypt PDF files. We’ll demonstrate this below.

How to encrypt files using Microsoft Office on Windows

Let’s use Microsoft Word to show how it is done by encrypting a simple Word document.

  1. With the document you want to encrypt open in Word, select File, then Info.
  2. In the Info window, select Protect Document.
  3. In the menu that appears, select Encrypt with Password.
    microsoft office encrypt files with password
  4. In the dialog box that appears, enter the password you want to use for this document.
    microsoft office encrypt document box

From now on, the only way to view this document will be by entering the password when prompted from within a Microsoft Office application that supports the unencrypted file type. But please see the next section to eliminate any possible unencrypted copies of the file on your computer.

How to encrypt files and folders with NordLocker

NordLocker is a young sibling of NordVPN, one of the top VPN services in the world. NordLocker is a file and folder encryption system for Windows and Mac OS that includes cloud storage capabilities. Since the focus of this article is encryption on Windows 10 systems, we’ll focus on the encryption side of the product. For a complete review of the product, including its cloud storage capabilities, read our full NordLocker review.

As its name implies, NordLocker stores encrypted files or folders in lockers. Anything stored in a locker is securely protected with an array of potent cryptography: AES-256, ECC (with XChaCha20, EdDSA, and Poly1305), and Argon2. What this means to us is that anything in a locker is completely illegible to anyone, unless they are using NordLocker, and know your master password.

On the other hand, when you log into NordLocker on your computer, all the lockers open up for you. You can work with files and folders through the NordLocker interface as if they were totally unprotected. Your apps can read and write them, you can move them, delete them, treat them like normal files. Because NordLocker encrypts individual files and folders with the lockers, it is fast and efficient. You don’t have to sit and wait whenever you open, close, or move a file within its locker.

Encrypting files is super easy too. It is literally a drag-and-drop process. Let’s look at an example.

How to create a locker and encrypt a file with NordLocker

For this example, we’ll assume you already have NordLocker installed on your PC. If you don’t, and you would like to follow along with the example, follow this link to download the free version of NordLocker for Windows.

download nordlocker for windows

  1. Log in to NordLocker. You’ll see the default lockers created by NordLocker, as well as any other lockers you might already have created.
  2. Hover the cursor to the right of NordLocker Cloud (BETA) and a circle with a cross will appear (see below).
    nordlocker create locker
  3. Click that to create a new locker. Since our goal in this procedure is to encrypt files and folders on your Windows 10 computer, be sure to create a locker that resides only on your PC.
  4. Drag any files or folders you want encrypted into the locker, or use the Add files or the Import folder menu options at the top of the window to select files/folders to add to the locker. The first time you add something to the locker, NordLocker will give you the option to move that file to the locker or copy that file to the locker while leaving the unencrypted file on the disk drive. Having an unencrypted copy of a file or folder on the computer defeats the purpose of creating and storing an encrypted copy.

Note: When you move an item to a locker, NordLocker deletes it, but doesn’t do anything to make the item unrecoverable on the disk. If your threat model includes protecting your computer against enemies who can recover deleted files from your disk drive, think carefully about whether NordLocker is the right choice to protect your data.

As long as your NordLocker is unlocked, you and your apps can work with the files and folders normally. When NordLocker is locked (you can do it manually by closing NordLocker, or set it to lock itself after a delay) no one can access them, even if they have physical access to your computer.

Eliminate any possible unencrypted copies of the file

In this section we are assuming that after you encrypt a file you want to eliminate all unencrypted copies from your system. If you use 7-zip or Microsoft Office to encrypt files, it is likely that Windows 10 still has one or more temporary copies of the unencrypted files stashed on the disk. To be safe, you will want to delete any unencrypted originals and all temporary files once you are done encrypting things.

How to delete any possible unencrypted copies of the file

  1. First, with 7-zip or NordLocker, make sure to delete the unencrypted original of the file.
  2. Click Start, then type temporary into the search box. In the menu that appears, select Delete temporary files. This opens the Storage settings window.
  3. Windows 10 scans your system and displays a list of file types that are stored on the various disk drives of your system. Select Temporary files to see a list of the file types that are available to delete.
  4. In that list, set the Temporary files and Recycle Bin checkboxes, then click the Remove Files button at the top of the list to obliterate any unencrypted copies of the file that might still be floating around on your system.

How to encrypt hard drives on Windows 10

When it comes to disk encryption on Windows 10, BitLocker Device Encryption is the tool that Microsoft provides. Built into Windows 10 Pro and Enterprise, BitLocker Device Encryption does exactly what it sounds like – it encrypts all the storage devices in your system.

This sounds ideal, but there are some drawbacks to using BitLocker.

  • If BitLocker Device Encryption wasn’t preinstalled and configured on your computer, it can be a real headache to install and configure. Check out this Overview of BitLocker Device Encryption posted on
  • BitLocker has different capabilities depending on what hardware your computer has built onto its motherboard.
  • As mentioned earlier, BitLocker only works on Windows 10 Professional and Enterprise systems.

Happily for us, there is a great alternative available. Called VeraCrypt, it addresses all of the drawbacks we just saw:

  • VerCrypt is significantly easier to install than BitLocker.
  • VeraCrypt is not dependent on special hardware built into your computer.
  • VeraCrypt works on every version of Windows 10, not just Pro and Enterprise.

VeraCrypt is Free, Open Source Software (FOSS), which we really like. Without getting into the OpenSource vs Proprietary software argument that plagues the computer world, from our perspective, FOSS software is generally considered more secure, and of course is free to use. Once VeraCrypt is installed, all you need to do is enter your VeraCrypt password whenever you start the computer.

Given all that, you know where we’re going with this. In the following section we’ll walk you through installing VeraCrypt on one of our lab machines.


How to install VeraCrypt for Windows 10 hard drive / disk encryption

While installing VeraCrypt is much simpler than the alternative, there is more to it than just launching an installer and pressing Okay a few times. And if you mess up, there is a chance you will lose files or even access to the entire disk drive.

We suggest you read through the instructions that follow before starting the process. If you are not confident you can complete the steps shown, or if you have a bad habit of losing important passwords, it is better to skip this type of encryption.

Installing VeraCrypt

Here are the steps to install VeraCrypt on Windows 10:

  1. You will need a standard USB drive for the VeraCrypt Rescue Disk you will create later. Find yourself a USB drive you can dedicate to this, and format it as FAT or FAT32 so it is ready when we need it.
  2. You will also need a program that can unzip files. We recommend 7-zip, the free and open source zip program we have discussed elsewhere in this guide. You can download 7-zip here.
  3. Go to the VeraCrypt download page and look for the Windows Installer setup link (circled in red in the following image). Click the link. In the dialog box that appears, click Save File to download the installer.
    download veracrypt for windows 10
  4. Launch the VeraCrypt setup program and accept all the default options displayed in the Setup Wizard.
  5. After a moment, VeraCrypt should display a message stating that “VeraCrypt has been successfully installed.”
  6. Click OK to close the Wizard, then Finish to complete the installation process. VeraCrypt will display the message shown below.
    veracrypt setup tip
  7. If you are new to VeraCrypt, it is worthwhile to follow the advice given here and view the tutorial. Click Yes to view the tutorial, or No to skip it. Either way you go is fine since we will walk you through the rest of the steps right here.
  8. Launch VeraCrypt. Select the System menu, then Encrypt System Partition/Drive.
    veracrypt encrypt system partition step 1
  9. The VeraCrypt Volume Creation Wizard appears. The Wizard asks what type of system encryption you want: normal, or hidden. Normal simply encrypts the system partition and is what we want, so select Normal, then click the Next button to continue.
  10. Next the wizard will ask you whether to encrypt just the Windows system partition, or the entire drive. If you have multiple partitions with important data, you can encrypt the whole drive. If you only have one partition on the drive (as we do on this computer), VeraCrypt will only let you select the Encrypt the Windows system partition option. Make your choice and click Next when ready.
    veracrypt encrypt system partition image 2
  11. The Wizard displays the Number of Operating Systems window. Is your system dual-boot or multi-boot (you can start the system in various operating systems)? If so, select Multi-boot. Otherwise, select Single-boot. Click the Next button to continue.
  12. The Wizard displays the Encryption Options window. We recommend you choose AES for the Encryption Algorithm, and SHA-256 for the Hash Algorithm. Both are widely-used algorithms that will serve you well. Click the Next button to continue.
  13. The Wizard displays the Password window. It is important to choose strong passwords if you want your system to be secure. Many password manager programs (such as our top pick, Bitwarden) include password generators that can help you create a strong one. Note: VeraCrypt will hassle you about it if you choose a password less than 20 characters long. Click the Next button to continue.
  14. The Wizard displays the Collecting Random Data window. You will be required to move your mouse around randomly within the window. This additional randomness increases the strength of your encryption keys. Once the randomness meter at the bottom of the window is full you can click the Next button to continue.
  15. The Wizard displays the Keys Generated window. There is nothing you need to do here except click the Next button to continue.
  16. The Wizard now forces you to create a VeraCrypt Rescue Disk (VRD). The explanation for this appears in the following image. If you want to live dangerously you can set the Skip Rescue Disk verification checkbox to avoid being forced to create a physical rescue disk. Make note of where VeraCrypt says it will store the ZIP image, then click Next to continue.
  17. Unless you selected the Skip Rescue Disk verification option in the last step you are now going to be forced to create a physical rescue disk and allow VeraCrypt to inspect it to see if you did it right. VeraCrypt doesn’t tell you how to do this or assist in any way, but we can. Remember finding a spare USB drive a little while ago? It is time to insert that USB drive into your system. Now navigate to the location where VeraCrypt stored its Rescue Disk in the previous step. Use 7-zip (or another ZIP program) to extract the files in the VeraCrypt Rescue file directly to the root of the USB drive. Once that is done, click Next so VeraCrypt can check your work.
  18. Assuming all went well, you should now see the Wizard’s Rescue Disk Verified window. Remove the USB drive from the computer and click Next.
  19. The Wizard displays the Wipe Mode window. For any normal uses, you don’t need to worry about this. Make sure the Wipe Mode is set to None (fastest) and click Next to continue.
  20. We are getting there. The Wizard now displays the System Encryption Pretest window. This is where VeraCrypt checks to make sure that the encryption process will actually work, rather than assuming it will work and trashing your system if it doesn’t. The image below explains what will happen in detail. Click Test to see how it goes. Note that VeraCrypt will probably ask you to print some more warnings and emergency procedures and the like before it actually does the test, so be ready for that.
  21. Assuming everything went well, you should see the following window once you have successfully restarted your computer and passed the system encryption pretest.
    veracrypt encrypt system partition 8
  22. VeraCrypt recommends you to make backup copies of all your important files before you encrypt your system. This will allow you to recover if something drastic like a power failure or system crash occurs in the middle of the encryption process. Once you are done with that, take a deep breath and click Encrypt. VeraCrypt will display more documentation it wants you to print if possible, covering when to use the VeraCrypt Rescue Disk after the encryption process is complete, then will finally begin the actual encryption process. You’ll be able to monitor the progress of the encryption, which is a nice touch.
    veracrypt encrypt system partition 9
  23. Once the encryption is done, you will need to enter your VeraCrypt password every time you start the computer.

How to encrypt files conclusion

Encrypting important information is one of the best things you can do to protect yourself from everyone who is trying so hard to get their hands on your personal information.

In this guide we covered techniques that Windows 10 users can use to encrypt individual files, folders, and entire drives on their Windows systems. While no one can guarantee that your data will be 100% safe against any and all attacks, the simple act of encrypting your most important data can make a big difference.

Let us know which encryption techniques you decide to apply in the comments below.

And if you need a solution for storage, check out our best cloud storage guide.

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A VPN is a service that both encrypts your data and hides your IP address by bouncing your network activity through a secure chain to another server miles away. This obscures your online identity, even on public Wi-Fi networks, so you can browse the internet safely, securely, and anonymously.

NetTodays gives you answers to all questions which are in your mind about VPN.

NetTodays also suggest continually utilizing Best VPN when you are using a newer Wi-Fi Network. Here is a decent dependable guideline: If you’re away from the workplace or home, and you’re utilizing another person’s Wi-Fi (even that of a relative or a companion, since you can’t be sure whether they’ve been compromised), utilize a VPN. It’s especially significant in case you’re getting to help that has specifically distinguishing data. Keep in mind, a great deal goes on in the background, and you never truly know whether at least one of your applications is verifying behind the scenes and putting your data in danger.

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