BitLocker in Windows 11 Pro – How to Enable It and Retrieve the Recovery Key

BitLocker encrypts partitions and drives (both system and non-system), and access is controlled via a TPM module, a password, or a boot PIN, among other methods. In modern configurations, XTS-AES mode is the standard; it was designed for disk encryption and is better suited for this purpose than older solutions.

What BitLocker protects and what it doesn't

BitLocker protects data "at rest," meaning when someone tries to read the contents of the drive outside of a running system: on another computer, from a removable storage device, or after removing the SSD. However, it is not a cure-all—it cannot replace system updates, antivirus software, common sense, or backups. If malware runs on a logged-in computer, it can access files just like the user.

Requirements before enabling encryption

Before you click "Enable," there are a few things you should check. This will help you avoid a situation where the recovery screen appears after a restart and you don't have the necessary information on hand.

System version and hardware features

BitLocker is available in the "Pro," "Enterprise," and "Education" editions. If you have the “Home” version, you’ll need to upgrade or use a different encryption solution. The second consideration is hardware: it works best with TPM 2.0 (a module that stores cryptographic information), which allows the drive to unlock automatically at startup, provided the boot environment hasn’t been compromised.

TPM, PIN, and password – which one to choose

- TPM (no additional steps): the most convenient option for a home computer; the drive unlocks automatically when the boot configuration matches. - TPM + PIN: a good compromise if you also want protection against someone who knows your user account password but has physical access to the hardware. - Boot password or USB drive: useful in specific environments, but less convenient; requires an additional element at startup.

Preparation before encryption

1) Back up your most important data (preferably to an external drive or in the cloud). 2) Make sure your device is charged—plug in the charger if you’re using a laptop. 3) If you plan to update the firmware/BIOS, do so before encryption, not during it. 4) Make sure you remember your account password or have access to your login method (PIN, hardware token, app).

How to enable BitLocker – a step-by-step guide

The steps below are based on the standard interface in AutoCAD 11 Pro. The names of the elements may vary slightly depending on the manufacturer and update version, but the logic remains the same.

Method 1: Control Panel

1) Open the Control Panel. 2) Go to System and Security → BitLocker Drive Encryption. 3) Next to the system drive, select Turn on BitLocker. 4) Choose how you want to unlock your computer (TPM, PIN, password). 5) Choose how to save the recovery key (Microsoft account, file, printout). 6) Decide whether to encrypt only the used space or the entire drive. 7) Select the encryption mode (recommended for drives on this computer). 8) Start the process and wait for it to finish.

Method 2: Command Line (for advanced users)

If you manage multiple computers or like to have full control, this tool comes in handy manage-bdeFor example, you can check the encryption status using the following command: manage-bde -status You can also enable and configure these settings using command-line options, but in most cases, it is more convenient to use the wizard in the Control Panel.

Used space or entire disk

- Only used space – faster on new or freshly installed computers. - Entire disk – slower, but a good option if the computer has been in use for a long time or you plan to pass it on.

What to do during encryption

You can usually continue working as normal, though it’s best to avoid forced shutdowns. If you’re using a laptop, it’s better not to risk the battery running out in the middle of the process.

How to check if everything is working properly

Once encryption is complete: - restart your computer and verify that the login process works as expected, - check the "BitLocker Drive Encryption" settings again to confirm that the status is "Enabled", - consider testing the system by unlocking an additional drive using your login credentials or a password (if you have configured it that way).

When the recovery screen appears and how to exit it

The recovery screen doesn’t always indicate a system failure. Most often, it’s a response to a change in the boot environment: a BIOS/UEFI update, a change to Secure Boot settings, a motherboard replacement, a partition modification, or sometimes even certain driver updates. BitLocker “interprets” this as a potential risk of tampering and asks for the recovery key.

Where to find the recovery key

The most important rule: You should save your recovery key before encryption begins, and ideally in several secure locations. The most common locations are: - Microsoft account – if you sign in with an online account, the information can be stored in the section linked to your devices (this is useful when you’re away from home). - Text file – saved on a USB drive or in an encrypted password manager. - Printout – kept in a secure place (e.g., in a home document folder). - Corporate environment – the administrator may have saved the code in a directory service (e.g., Entra ID/Azure AD) or in the domain.

How to match the code to the correct device

On the recovery screen, you'll usually see an ID. This makes it easier to select the correct entry if you have more than one computer. It's also a good idea to name the code file so that it's immediately clear which device it belongs to (e.g., model + date).

What if you don't have a recovery code?

Let’s be clear: without the recovery key, there’s no way to “magically” decrypt the drive. If you don’t have access to your account, the file, or a printed copy, your options are: - contacting the administrator (in a corporate environment), - restoring data from a backup, - performing a clean install of the system and losing the data on the encrypted drive.

Note regarding work computers

If your computer is managed by a company, do not attempt to blindly change the BIOS/UEFI settings or the TPM module. Many organizations have policies that enforce a specific BitLocker configuration—and the IT department may have recovery procedures and additional security measures in place.

Best practices after enabling BitLocker

- Store your recovery key in at least two places (e.g., an account and a printed copy). - Consider setting up a boot PIN if your laptop frequently leaves the house. - Before making major hardware changes (motherboard, hard drive), pause BitLocker protection and then proceed with the operation. - Make sure to back up your data—encryption protects your privacy, but it is no substitute for a backup.

Frequently Asked Questions

Does BitLocker slow down your computer?

On modern hardware, the drop in performance is usually minor and hard to notice during everyday tasks. The most resource-intensive part is often the initial full-disk encryption.

Can I encrypt an external drive?

Yes, you can encrypt additional partitions and storage devices and protect access with a password. This is useful for USB flash drives and portable hard drives.

What about BIOS/UEFI updates?

Updates may trigger the recovery screen. A best practice is to temporarily suspend protection before the update and then resume it after restarting.

Support and tools – where to find help

If you’re setting up a computer for yourself or your business, it’s a good idea to stick to trusted sources and procedures. At Key-Soft.pl, we publish practical guides and tips on how to keep your data secure and how to resolve common system setup issues. Finally, a quick note for those setting up their work environment: at Key-Soft.pl, you’ll find affordable solutions, and when choosing a product, pay attention to hardware requirements and support; if you need activation or additional office applications, just click “Buy.”