TPM Issues (Second-hand laptop)

[Noreos]

From a discussion with ChatGPT: Based on everything we've investigated, your HP OMEN 15-dc0011TX (Intel Core i7-8750H, 32 GB RAM) appears to have a Windows installation that was modified by a previous owner rather than the original factory installation. The laptop was running an outdated Windows 11 Pro 21H2 (Build 22000) installation that was not activated and used a blocked retail license (errors 0xC004C003 and 0xC004F050), while the motherboard still contains an embedded OEM Windows product key. This strongly suggests the laptop originally shipped with a different Windows edition, most likely Windows Home, and was later upgraded to Windows 11 Pro without a valid license. During troubleshooting, the BIOS was successfully updated from F.05 (2018) to F.19 (2022), Secure Boot was confirmed to be enabled, and the Intel Management Engine was verified to be functioning correctly. However, Windows consistently failed to detect a TPM; Get-Tpm and TPM management utilities reported no compatible TPM, and the BIOS contained no option to enable Intel Platform Trust Technology (PTT) or TPM, despite indicating "TPM Device: Hidden." We systematically ruled out outdated firmware, Secure Boot configuration, and Intel Management Engine failures as causes. The remaining possibilities are a firmware or motherboard configuration that permanently hides TPM, a previous motherboard replacement, or a corrupted Windows installation. Because the current Windows installation is both outdated and improperly licensed, the recommended next step is to back up all important data, perform a clean installation of the latest Windows 11 from official Microsoft installation media, allow Windows to detect the embedded OEM license automatically by selecting "I don't have a product key" during setup, install the correct Windows edition, complete all Windows and HP driver updates, and then recheck both Windows activation and TPM detection. If TPM is still absent after a completely fresh installation, the evidence will strongly indicate that the TPM issue resides at the firmware or motherboard level rather than within Windows itself.

[Raj_05]

Hi @Noreos,

Thank you for providing the detailed information and for sharing the extensive troubleshooting you've already completed. Based on what you've described, you've already ruled out the common software and BIOS-related causes.
 

Our engineers' latest guidance is to follow the steps outlined in the Technical Knowledge Base (TKB).

Please note that resetting the TPM may resolve the issue for some systems, but it can also impact Windows security settings and may require additional setup or recovery. For that reason, we've included a warning so you can make an informed decision before proceeding.

BIOS updates are thoroughly tested before release. However, for older products that have reached the end of support, additional BIOS updates may not be available.

At this time, this is our final recommendation based on the latest engineering guidance. If there are any changes or new updates in the future, we will share them with the community.