Allow BitLocker without compatible TMP Module

The Help Files in Windows 8 are driving me crazy (they were/are much better in Windows 7).  I Help Files tell me what needs to be done, but I cannot find info on how to do it.


I appreciate any  assistance.


Thanks in advance.




Hi Jerry,


Thank you for reaching out to the Microsoft Community!


Based on the descriptions, it appears that you are getting an error “Allow BitLocker without compatible TMP Module.”


To guide you in the right direction, I would appreciate it if you could answer the following questions:


1.      When exactly are you getting this message?

2.      What do you mean by “The Help Files in Windows 8 are driving me crazy”?

3.      Were there any recent changed made on the computer prior to the issue?



Let’s try these steps and check if it helps.



How to Configure Computer to Enable BitLocker without Compatible TPM:


Administrators must follow the steps below to configure their Windows 8 computers to allow enabling Bit Locker Drive Encryption without compatible TPM:


a. Log on to Windows 8 computer with the account that has administrative privileges.


b. Assuming that the computer has been configured to display classic start menu, click Start and at the bottom of the menu in search box type GPEDIT.MSC command and press enter key.


c. On the opened Local Group Policy Editor snap-in from the left pane expand Computer Configuration > Administrative Templates > Windows Components > Bit Locker Drive Encryption and from the expanded list click to select Operating System Devices.


d. From the right pane double-click “Require additional authentication” at startup.


e. On the opened box click to select Enabled radio button and ensure that under Options section Allow Bit Locker without a compatible TPM checkbox is checked.


f. Once done, click Ok button to allow the changes to take effect and close Local Group Policy Editor snap-in.



If anything in my post is unclear or you have further questions on Windows, do not hesitate to let us know. It is our pleasure to be of assistance.

K.Z. Sharief Khan
Ex-Microsoft Forum Moderator

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Question Info

Last updated October 4, 2021 Views 87,398 Applies to: