Step-by-Step Guide to Safely Suspend or Disable BitLocker Before Windows Updates (2026)

Why suspending BitLocker matters before a Windows update

Windows updates modify low‑level system files and boot components. When BitLocker protection remains active, the change can cause the TPM to detect an unexpected state, prompting a recovery screen. Suspending BitLocker temporarily disables the encryption check for a defined number of reboots, allowing the update to install without interruption.

Preparation checklist

• Locate the recovery key – Store the 48‑digit key in a secure location such as OneDrive, a USB drive, or a printed copy.
• Verify administrative rights – Both Control Panel and PowerShell methods require admin privileges.
• Confirm drive letter – Most systems use C: for the system drive, but custom configurations may differ.

Method 1: Suspend BitLocker using the Control Panel

1. Open Control Panel and navigate to BitLocker Drive Encryption.
2. Find the system drive (usually C:) and click Suspend protection.
3. A confirmation dialog appears; select Yes to proceed.
4. Restart the computer to let the update process begin. BitLocker will remain suspended for the default reboot count (1‑2 reboots).
5. After the update finishes, BitLocker automatically resumes protection.

Method 2: Suspend BitLocker with PowerShell

PowerShell provides a fast, scriptable option for administrators managing multiple machines.

Suspend-BitLocker -MountPoint "C:" -RebootCount 1

Replace "C:" with the appropriate drive letter if necessary. The -RebootCount parameter defines how many restarts the suspension remains active.

Method 3: Fully disable BitLocker (decryption)

Decryption is recommended only when permanent removal of encryption is desired, as it can take several hours on large drives.

• Via Settings UI
  1. Press Win + S and type Manage BitLocker.
  2. Select the target drive and click Turn off BitLocker.
  3. Confirm the action; Windows begins decrypting the drive.
• Via Command Prompt

  manage-bde -off C:

Special considerations for BIOS or firmware updates

Updating BIOS, UEFI, or firmware can also trigger BitLocker recovery because the TPM measurements change. Microsoft recommends suspending protection before any firmware flash. The same PowerShell command with -RebootCount 1 ensures the protection resumes automatically after the reboot.

“If BitLocker protection isn’t suspended, the system won’t recognize the BitLocker key and you’ll be prompted to enter the recovery key to proceed next time the system restarts.” – Microsoft Learn

Common pitfalls and troubleshooting

• Missing recovery key – Without the key, a forced recovery screen locks the device. Always back up the key before any suspension or decryption.
• Group Policy overrides – Enterprise environments may have policies that prevent suspension. Check Computer Configuration → Administrative Templates → Windows Components → BitLocker Drive Encryption → Suspend BitLocker for conflicts.
• Update‑induced recovery – Certain 2026 updates (e.g., KB5083769) have caused unexpected recovery prompts. Suspending BitLocker beforehand mitigates the risk.

Best‑practice workflow for IT administrators

1. Export the recovery key to a centralized password manager.
2. Run Suspend-BitLocker on target machines via remote PowerShell.
3. Deploy the Windows update using WSUS, Intune, or SCCM.
4. Verify that the update completed without a recovery prompt.
5. Confirm BitLocker protection automatically resumed; if not, run Resume-BitLocker -MountPoint "C:".

Conclusion

Suspending BitLocker is a safe, reversible step that prevents encryption‑related interruptions during Windows updates and firmware upgrades. Full decryption should be reserved for scenarios where encryption is no longer required. By following the outlined procedures, users and administrators can maintain data security while ensuring smooth update installations.