Windows 10: How to enable BitLocker/ error code: 0x8004259a - Windows 11

Discus and support How to enable BitLocker/ error code: 0x8004259a - Windows 11 in Windows 10 Gaming to solve the problem; I just upgraded a machine from Windows 10 to Windows 11 via Windows 11 installer. When I attempt to enable BitLocker, I get the error code:... Discussion in 'Windows 10 Gaming' started by Kontari Wright, Jun 26, 2025 at 4:32 PM.

  1. How to enable BitLocker/ error code: 0x8004259a - Windows 11


    I just upgraded a machine from Windows 10 to Windows 11 via Windows 11 installer. When I attempt to enable BitLocker, I get the error code: 0x8004259a.I can see the machine listed in my Active Directory, but I cannot start BitLocker and save the key to the Active Directory. Can anyone help?

    :)
     
    Kontari Wright, Jun 26, 2025 at 4:32 PM
    #1
  2. TeodR Win User

    I upgrade from Windows 10 Home to Pro to get bitlocker -- error 0x8004259a prevents activation

    Hi, I upgrade Windows 10 Home to Pro, paid $99 for the sole purpose of getting bitlocker which is required for me to use. When I try to activate bitlocker I get the following error:

    A problem occurred during BitLocker setup. You may need to restart BitLocker setup to continue.

    Error code: 0x8004259a

    I rebooted twice, no luck. Anyone out there who can help me?

    Thank you,

    Ted
     
  3. BitLocker won't enable on Windows 10 after update on Aug 9

    Hi Brenda,

    I would be happy to assist you.

    Before I assist you I would like to know the information below,


    • Do you have a Windows 10 copy of the operating system?

    I suggest you check whether the Bit locker is ON or OFF using the steps below.

    Can you verify if BitLocker is enabled or disabled on your device? You can Enable/disable BitLocker by going to Desktop and follow these steps:


    • Swipe Right to Left to bring up the Charm.

    • Choose Settings.

    • Choose Control Panel.

    • Select BitLocker Drive Encryption.

    • Verify whether BitLocker is on or off on each device.
    Also I suggest you to enable the WinRE so that you can enter the bit locker key and proceed.

    When WinRE is disabled, you cannot enable BitLocker, and you receive an error message that resembles the following.

    This PC doesn't support entering a BitLocker recovery password during startup. Ask your administrator to configure Windows Recovery Environment so that you can use BitLocker.

    The solution would be to manually enable the windows recovery environment:


    • Copying the winre.wim file from c:\windows\system32\recovery\ to a folder on a recovery partition. (The partition need to have a drive letter at this point.)

    • Set the RE Image path. Example: reagentc /setreimage /path r:\recovery\windowsre

    • Enable RE with command: reagentc /enable

    • (You may remove the drive letter for the recovery partition after you have done this.)

    • Bit locker will be enabled.
    If the issue still persists, suggest you to post your query on the below link.

    https://technet.microsoft.com/en-us/library/hh831507(v=ws.11).aspx

    Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.

    Thank you.
     
    Vidyashree_C, Jun 26, 2025 at 4:34 PM
    #3
  4. How to enable BitLocker/ error code: 0x8004259a - Windows 11

    Bitlocker Randomly Enabled

    Hi,

    On my personal Lenovo laptop, Bitlocker somehow randomly was enabled. I have not enabled it, and I followed the recovery steps without luck. It seems that it was enabled during an update. I logged into my Microsoft account, see that the laptop is listed, but there is no bitlocker key listed. I am at a loss on what the next steps might be for me to be able to log into my computer at this point.

    Carl
     
    CarlDAnderson, Jun 26, 2025 at 4:34 PM
    #4
Thema:

How to enable BitLocker/ error code: 0x8004259a - Windows 11

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