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In this Group policy setting :-<br />
Did you also check the option which says &quot;Allow BitLocker without a compatible TPM&quot; ?
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In this Group policy setting :-
Did you also check the option which says "Allow BitLocker without a compatible TPM" ?

Yes
Capture.PNGhttps://filedb.experts-exchange.com/incoming/2014/09_w36/870490/Capture.PNG

Capture.PNG

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Did you check in rsop as well? If a domain GPO and a local GPO have contradictory settings, the domain GPO would win.
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Did you check in rsop as well? If a domain GPO and a local GPO have contradictory settings, the domain GPO would win.

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The actual problem was that this PC could not contact the domain controller due to firewall rules in the Sonicwall preventing communication from WLAN to VPN. After correcting that issue GPUPDATE / FORCE ran and so did BitLocker.
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The actual problem was that this PC could not contact the domain controller due to firewall rules in the Sonicwall preventing communication from WLAN to VPN. After correcting that issue GPUPDATE / FORCE ran and so did BitLocker.

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So it was simply a wrong error message.
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After setting group policy setting and rebooting Bitlocker is still giving me the error:<br />
<br />
A compatible Trusted Platform Module (TPM) Security Device must be present on this computer, but a TPM was not found. Please contact your system administrator to enable BitLocker<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2014/09_w36/870485/Capture.PNG" target="_blank" title="GPEDIT (11 KB)"><img alt="GPEDIT" class="file-block lazyload" style="max-width: 685px;" data-src="https://filedb.experts-exchange.com/incoming/2014/09_w36/870485/Capture.PNG" /></a><a href="https://filedb.experts-exchange.com/incoming/2014/09_w36/870486/Capture1.PNG" target="_blank" title="BitLocker (38 KB)"><img alt="BitLocker" class="file-block lazyload" style="max-width: 643px;" data-src="https://filedb.experts-exchange.com/incoming/2014/09_w36/870486/Capture1.PNG" /></a>
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Capture1.PNG

After setting group policy setting and rebooting Bitlocker is still giving me the error:

A compatible Trusted Platform Module (TPM) Security Device must be present on this computer, but a TPM was not found. Please contact your system administrator to enable BitLocker




Not able to use bitlocker without TPM

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

Windows 7

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.