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How to Encrypt Windows Files

Looking for a way to protect sensitive files on your PC? For Windows users, one easy safeguard you can take is to encrypt the files and file folders containing your sensitive information.

Encryption is a smart way to secure a file. Essentially, should someone access an encrypted file, all they’ll see is a bunch of random numbers, letters, and special characters.

Now, once a file is encrypted, that doesn’t mean that it’s encrypted for good. If you’re the one who encrypts the file, then you’ll have access to a decryption key. This can be used to piece together the file and make it readable again, sort of like putting together a jigsaw puzzle that’s scattered on the floor.

You may have heard about encryption in the news lately in relation to major ransomware attacks like WannaCry. In the case of ransomware, hackers encrypt files against a user’s will, and they alone hold the decryption key, which they’ll provide for a hefty price. While encrypting sensitive files on your PC isn’t quite the same as how hackers use encryption for ransomware, the effectiveness of ransomware does speak to how good encryption is at keeping unwanted users from accessing sensitive information.

That said, you wouldn’t want to encrypt data this way in a shared environment. If you encrypt the data, other users won’t be able to get into it. For situations like this, there is software your organization can use to standardize your file encryption.

To get started with encrypting files or a folder in Windows, locate the data you want to encrypt and follow these steps:

Select the file or folder and then right-click it and go to Properties.

A new window will open. Click on the General tab and then find and click the Advanced button.

ib 1 encryption

Next, check the box that reads “Encrypt contents to secure data.” With this box selected, then click Apply,  OK.

Depending on if you’re encrypting a single file or a folder containing files, you may see a new window asking you to confirm how much data you wish to encrypt. Select the desired button and then click OK.

ib 3 encryption

You’ll now see that your file is encrypted, as indicated by the padlock seen on your file’s icon.

With your data encrypted, you can feel better about the security of your files. Of course, file encryption isn’t an impenetrable security plan, so you shouldn’t fully rely on it. Instead, we recommend that a security measure like encryption be one part of a comprehensive security plan.

For additional assistance protecting your sensitive data from those who don’t need to see it, call ActiveCo Technology Management today at (604) 425-3433.

Jeff Penner

Jeff Penner

Jeff has been in the managed services industry since 2015, understanding what business owners are looking for from technology, and helping them find it. The most important element for a business owner taking on a new technology partner is peace of mind and thus Jeff directs his efforts on finding practical information that any leader can apply to their business. Jeff lives in Vancouver, BC, sharing his love for learning and “the great indoors” with his 2 daughters.