How to disable BitLocker on your Windows device

BitLocker is Windows's built-in encryption tool that scrambles everything on your hard drive so only someone with the right password or recovery key can read it. To turn it off, you go to Settings, find the BitLocker section, and choose to decrypt your drive — the process then runs in the background and can take anywhere from a few minutes to several hours depending on how much data you have.

The steps differ slightly between Windows 11 and Windows 10, and you'll need administrator rights on your device. If you've forgotten your recovery key or can't access your account, the process becomes more complicated and may require you to contact Microsoft or use a recovery environment.

Key Takeaways

  • You can turn off BitLocker through Settings on most Windows devices, and the decryption process runs automatically once you start it.
  • Windows 11 and Windows 10 have slightly different paths to the BitLocker settings, but both use the same basic approach.
  • Decryption can take several hours on a large drive, and your device will continue to work normally while it happens in the background.
  • If you don't have your recovery key and can't remember your password, you may need to contact Microsoft Support or use a recovery environment to regain access.

Disabling BitLocker in Windows 11

Open Settings by pressing Windows key + I, then go to System on the left side and scroll down to find BitLocker. Click on BitLocker settings to expand that section. You'll see your drive listed — usually labeled as "C:" — with a button next to it that says "Manage BitLocker" or "Turn off."

Click that button, and Windows will ask you to confirm. Select "Turn off BitLocker" from the menu that appears. Your drive will begin decrypting immediately, and you'll see a progress bar showing how far along the process is. You don't need to keep Settings open — decryption continues in the background even if you close the window or restart your device.

Disabling BitLocker in Windows 10

Press Windows key + I to open Settings, then go to System and click Update & Security on the left side. Select Device encryption from the menu. If you see BitLocker instead, click on it. You'll see your drive listed with a "Turn off" button next to it.

Click "Turn off," and Windows will ask you to confirm that you want to decrypt your drive. Once you confirm, decryption starts automatically. Like Windows 11, the process runs in the background and doesn't prevent you from using your device normally.

What happens during decryption

Once you start the decryption process, Windows removes the encryption layer from your drive bit by bit. On a small drive with little data, this might take just a few minutes. On a large drive with hundreds of gigabytes of files, it can take several hours or even overnight. The speed depends on your drive type — solid-state drives (SSDs) decrypt faster than older mechanical hard drives.

Your device remains fully usable while decryption happens. You can open programs, browse the web, work on files, and restart your computer without interrupting the process. The progress bar in Settings shows you how much of the drive has been decrypted so far. If you restart your device, decryption picks up where it left off the next time you log in.

If you don't have your recovery key

BitLocker stores a recovery key — a long string of numbers — that can unlock your drive if you forget your password or can't access your account normally. If you've lost this key and can't turn off BitLocker through Settings, you have limited options. You can try signing in with a Microsoft account that was used to set up BitLocker, since Microsoft stores recovery keys in your account history.

If that doesn't work, you can contact Microsoft Support with proof of ownership of the device. They can help you retrieve your recovery key or provide other ways to regain access. Alternatively, if you have physical access to another Windows device, you can use the BitLocker recovery environment to unlock your drive, though this requires technical knowledge and the recovery key or a way to verify your identity.

Why you might want to turn off BitLocker

BitLocker is useful for protecting your data if your device is lost or stolen, but it does use some system resources and can slow down very old computers slightly. Some people turn it off because they're moving to a different device and don't need the encryption anymore, or because they're troubleshooting a technical problem that encryption might be causing.

If you're selling or giving away your device, decrypting it first makes it easier for the new owner to set up. If you're keeping the device but want faster performance on older hardware, turning off BitLocker may help slightly — though modern devices usually don't notice a meaningful difference.

Turning BitLocker back on later

If you change your mind after decrypting your drive, you can turn BitLocker back on through the same Settings menu. The process is the reverse: go to BitLocker settings, click "Turn on," and Windows will begin encrypting your drive in the background. You'll be asked to choose whether to store your recovery key with Microsoft or save it to a file on a USB drive.

Turning BitLocker back on takes about as long as turning it off did, depending on your drive size. Like decryption, encryption runs in the background and doesn't prevent you from using your device.

Frequently Asked Questions

How long does it take to turn off BitLocker?

Decryption speed depends on your drive size and type. A small SSD might finish in minutes, while a large mechanical drive with hundreds of gigabytes could take several hours. Windows shows you the progress in Settings, and the process continues even if you restart your device or close the Settings window.

Will my files be deleted when I turn off BitLocker?

No. Turning off BitLocker only removes the encryption — all your files, programs, and settings stay exactly as they are. The data itself doesn't change, only the layer of protection around it.

Can I use my computer while BitLocker is decrypting?

Yes, completely. Decryption runs in the background and doesn't prevent you from opening programs, working on files, or browsing the web. You can also restart your device without stopping the process.

What if BitLocker won't turn off and shows an error?

Make sure you're signed in with an administrator account and that your device is plugged in (for laptops). If you see a specific error code, search for that code on Microsoft's support site for troubleshooting steps. If the problem persists, contact Microsoft Support with details about the error.

Do I need my recovery key to turn off BitLocker?

No. If you can sign in to your device normally and have administrator rights, you can turn off BitLocker without the recovery key. The key is only needed if you can't access your account or if Windows asks you to verify your identity during the process.