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Turn on device encryption - Microsoft Support
Learn how to protect your data with encryption in Windows 11 or Windows 10. Find out if your device supports device encryption or standard BitLocker encryption and how to turn them on.
Device encryption in Windows - Microsoft Support
Learn how to use BitLocker or Windows device encryption to protect your data on Windows 10 or 11 devices. Find out how to turn on, manage, and back up your encryption keys.
Finding your BitLocker recovery key in Windows
Your BitLocker recovery key is a unique 48-digit numerical password that can be used to unlock your system if BitLocker is otherwise unable to confirm for certain that the attempt to access the system drive is authorized.
Back up your BitLocker recovery key - Microsoft Support
Back up your BitLocker recovery key. Windows 10 Windows 11. BitLocker is the Windows encryption technology that protects your data from unauthorized access by encrypting your drive and requiring one or more factors of authentication before it will unlock it.
Device encryption in Windows - Microsoft Support
BitLocker encryption is available on supported devices running Windows 10 or 11 Pro, Enterprise, or Education. On supported devices running Windows 10 or newer BitLocker will automatically be turned on the first time you sign into a personal Microsoft account (such as or or your work or school account.
Fix BitLocker settings with the Surface BitLocker Protector Check tool ...
Learn how to download and use the Surface Bitlocker Protector Check tool to configure the Bitlocker settings on your Surface device correctly.
What is TPM? - Microsoft Support
It's used by services like BitLocker drive encryption, Windows Hello, and others, to securely create and store cryptographic keys, and to confirm that the operating system and firmware on your device are what they're supposed to be, and haven't been tampered with.
BitLocker mitigation plan for vulnerability in TPM
A security vulnerability exists in certain Trusted Platform Module (TPM) chipsets. The vulnerability weakens key strength. This article helps identify and remedy problems in BitLocker protected-devices that are affected by the vulnerability that is described in Microsoft Security Advisory ADV170012.
Create a local user or administrator account in Windows
Windows 11 Windows 10. You can create a local user account (an offline account) for anyone who will frequently use your PC. The best option in most cases, though, is for everyone who uses your PC to have a Microsoft account.
How to encrypt a file - Microsoft Support
How to encrypt a file. Windows 10. File encryption helps protect your data by encrypting it. Only someone with the right encryption key (such as a password) can decrypt it. File encryption is not available in Windows 10 Home.