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windows 11 update stopped at 30% - now in bitlocker loopback

xivizixi 40 Reputation points
2026-04-05T13:18:08.24+00:00

windows 11 update stopped at 30% - now in bitlocker loopback

When this initially happened.

  • Googled solution
  • found and entered bitlocker code
  • bitlocker ran repair and windows update rolled back
  • computer booted
  • all OK - or so I thought.

However, when switching on workstation following morning (switched off overnight):

  • screen said "windows update 30% ..) i.e. it thought it was still doing the update
  • but bitlocker had rolled it back as above.
  • 5 mintues later, blue bitlocker screen appears.
  • Entered bitlocker code, it went into repair mode
  • 6 minutes later back at blue bitlocker screen
  • 20 minutes later been round the bitlocker loop another 3 times.
  • shut workstation down (5 sec press on power button), left 10 minutes
  • switch on but back to screen with 'windows update 30% .." and looping as above.

I've googled what to do when in a bitlocker loop BUT looking at the solutions,
I think the problem is that WINDOWS UPDATE still thinks it is at 30% but bitlocker rolled it back and that it is this DESCREPANCY that is causing the problem.

Specs:

  • HP Business Workstation
  • running Windows 11 Pro - can't give version coz it won't boot.
  • on automatic windows updates
  • all apps and drivers up to date

Data

  • don't have a copy of windows 11 pro or serial number, if I need to reinstall
  • Most of data is on a NAS but, of course, I'm now finding out what is on hard drives ..

This is a working business computer so need to get it back up and running as soon as possible.

PLEASE HELP! - Thank you.

Windows for home | Windows 11 | Recovery and backup
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Answer accepted by question author
  1. DaveM121 861.4K Reputation points Independent Advisor
    2026-04-05T15:58:24.5166667+00:00

    The best option is to perform those steps in this order:

    1

    Quick Machine Recovery - let your device search for solutions to repair itself.

    2

    Troubleshoot.

    Please try each option one at a time, then see if Windows will boot up correctly.

    .

    Go to Troubleshoot - Advanced Option - Startup Repair

    See if Windows startup can repair itself

    .

    Go to Troubleshoot - Advanced Option - System Restore

    Check to see if you have a restore point you can go back to

    .

    If the above fails, go to Troubleshoot - Advanced Options - Reset this PC

    Choose to keep your files and apps, just your files or to keep nothing

    Then start the Reset

    1 person found this answer helpful.
Answer accepted by question author
  1. DaveM121 861.4K Reputation points Independent Advisor
    2026-04-05T13:50:22.2833333+00:00

    Are you able to force your PC into the Recovery Environment using these steps, to try to uninstall the troublesome update from there.

    Start your PC, just as Windows attempts to load (spinning dots), press and hold Power Button for 5 - 10 seconds to perform a Hard Shut Down

    Do this twice

    On the third start Windows will boot into the Recovery Environment and from there you can access System Repair, Safe Mode, Command Prompt... etc.

    1 person found this answer helpful.
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  1. Q&A Assist
    2026-04-05T13:18:24.2866667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To break out of the BitLocker recovery loop and complete rollback so the device can boot again, use these steps and checks.

    1. Use the BitLocker recovery key each time
      • On the blue BitLocker recovery screen, enter the full 48‑digit BitLocker Recovery Key. Hyphens are optional.
      • If the key is correct, Windows should attempt to start and continue the rollback of the failed update.
      • If the key is not available, use the guidance in the references to locate it (Microsoft account, Azure AD/Intune, domain admin, or printed/saved copy).
    2. Let the rollback complete fully
      • After entering the recovery key, leave the device powered on and connected to power for an extended period so Windows can finish rolling back the failed update.
      • Avoid forcing power‑offs during rollback unless absolutely necessary, as this can cause repeated BitLocker recovery and incomplete rollback.
    3. If the device still loops into BitLocker recovery
      • Each time the BitLocker screen appears, enter the recovery key again to allow Windows to continue repairing and rolling back.
      • Once Windows successfully boots to the desktop, immediately:
        1. Back up any local data that is not already on the NAS.
        2. Suspend BitLocker protection on the OS drive before attempting any further updates.
    4. After successful boot: suspend BitLocker and re‑run updates
      • In Windows (after a successful boot using the recovery key):
        • Suspend BitLocker/Device Encryption on the system drive.
        • Then run Windows Update again to either re‑apply the update or install the latest cumulative update.
      • Suspending BitLocker reduces the chance of another recovery loop during update.
    5. If BitLocker recovery is triggered by Secure Boot / firmware changes
      • If the loop started after firmware/boot configuration changes, check for Secure Boot issues. When BitLocker is bound to PCR[7] and Secure Boot configuration changes unexpectedly, BitLocker will repeatedly enter recovery.
      • In that case, after regaining access to Windows, review the BitLocker and Secure Boot configuration as described in the BitLocker firmware‑update troubleshooting reference.
    6. If the device will not start at all
      • If the device will not start even after entering the correct recovery key, or cannot complete rollback, use another device to review the BitLocker recovery and Windows update troubleshooting guidance in the references and consider contacting the device manufacturer or Microsoft support for in‑place repair options.

    For now, the key actions are: repeatedly use the BitLocker recovery key to allow rollback to finish, avoid interrupting rollback, then once Windows boots, back up data, suspend BitLocker, and re‑run updates.

    References:

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