This will help you recover your files if you ever can't log into your PC. Your recovery key is then uploaded to Microsoft's servers. There's another limitation, too-it only actually encrypts your drive if you sign into Windows with a Microsoft account. Not every PC will have this feature, but some will. This feature was first introduced in Windows 8.1, and there are specific hardware requirements for this. Many new PCs that ship with Windows 10 will automatically have 'Device Encryption' enabled. Related: Windows 8.1 Will Start Encrypting Hard Drives By Default: Everything You Need to Know If Your Computer Supports It: Windows Device Encryption You may have to pay for the Professional edition of Windows 10 or use a third-party encryption solution. Unlike all other modern consumer operating systems-macOS, Chrome OS, iOS, and Android-Windows 10 still doesn't offer integrated encryption tools to everyone.