Windows 11 to Automatically Enable BitLocker Encryption on All PCs
Microsoft plans to roll out an updated setup process that will automatically turn on BitLocker disk encryption during OS reinstallation, beginning with the Windows 11 24H2 update, according to reports from Deskmodder.de.
BitLocker is Windows' built-in data encryption tool that offers strong security, but users who lose their recovery key face the risk of permanent data loss.
This new automatic encryption will affect Windows 11 Pro users. For Windows 11 Home, BitLocker only activates when manufacturers enable an encryption flag in UEFI through the device maker. This means custom-built PCs running Windows 11 Home may not be impacted.
Starting with version 24H2, BitLocker will automatically activate or reactivate during OS reinstalls, provided your Windows 11 edition includes the feature. The change applies to fresh installs of Windows 11 24H2 as well as upgrades to that version. Your C drive and all other connected drives will be encrypted during the reinstallation process.
While BitLocker encryption is valuable for protecting important data, it presents a genuine concern for users unaware that disk encryption has been enabled during OS setup. Users could lose complete access to their drive contents if any storage-related issues occur on a BitLocker-enabled machine.
Microsoft requires Windows 11/10 Pro users to manually enable BitLocker and back up their encryption keys for data protection. However, users can still lose access to their data if they forget or lose the backup. If a user loses access to their Microsoft Account, they effectively lose access to their entire PC.
Additionally, tests by Tom's Hardware last year showed that BitLocker encryption can reduce SSD performance by up to 45% depending on workload intensity. With software-based BitLocker, all encryption and decryption tasks load onto the CPU, potentially degrading system performance. Although modern CPUs include AES encryption/decryption features, performance impact still occurs.
The good news is users can use Rufus, a tool capable of disabling Windows 11 24H2's automatic disk encryption before installation.
Alternatively, users can disable BitLocker by modifying the Registry during Windows installation:
- Press Shift + F10 to open the Command Prompt window.
- Type regedit and press Enter to launch Registry Editor.
- Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BitLocker.
- Right-click in an empty area and select New > Dword (32-bit) Value.
- Name the value "PreventDeviceEncryption".
- Set the value data to 1 and click OK.
- Close Registry Editor.
No Comment to " Windows 11 to Automatically Enable BitLocker Encryption on All PCs "