HP Z440 TPM 1.2 to 2.0 upgrade runs but does not upgrade

[LightGuy481]

I am trying to upgrade TPM 1.2 IFX v4.40 to TPM 2.0 v5.62.  I have downloaded the SP87753 and I am running TPMConfig64 as Administrator.  It appears to correctly identify the existing version on my computer and prepares the update and then reboots.  When the computer reboots it eventually comes up with a white BIOS screen saying a TPM update has been prepared do I want to proceed, I select F1 to proceed (F2 is abort).  The screen then goes black and about 30 seconds later I get a second screen asking do I wish to proceed with the TPM update and I once again hit F1 to proceed with the TPM update, once again the screen goes black and then eventually the normal HP BIOS screen appears and Windows boots up.

However, when I get back into Windows and run tpm.msc it still identifies as 1.2 v4.40 it never updates. 

I have tried the update a couple of times, each time deleting the tpm.log file as one user mentioned sometimes it doesn't update if the prior log is present (unsure if that's true or not).   I even attempted going from 1.2 v4.40 to 1.2 v4.43 but it also goes through the same steps and appears to update but yet it always identifies as v4.40 after the update.

The only change I see occurring is after each update TPM is disabled in the BIOS.   I am running the most current BIOS that I can identify which is v2.62 from 1/4/2024.   

I also saw in the pdf instructions to make sure I have at least 5GB of space on my drive for a recovery partition which I do, but there is an existing 742MB recovery partition, do I maybe need to delete that partition?  

I'm stumped at this point and I can't seem to find any cause of the failure.

[NonSequitur777]

@LightGuy481,

Welcome to our HP Community forum!

You are running into the same brick wall I did with my HP Z440 Workstation upgrade project: https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Upgrading-an-HP-Z440-Workstatio....

Short answer: even if TPM 2.0 were to "stick" in this workstation, it would still not make it Windows 11 eligible, as none of its compatible Xeon and Intel Core processors are W11 certified.

However, if you like your PC, there are a number of reliable and effective methods developed which would allow you to almost effortlessly upgrade your PC to Windows 11 in non-supported hardware, such as this easy-to-follow YouTube instructional video shows: https://www.youtube.com/watch?v=lSrmhhigEhY&t=332s&ab_channel=Tips2Fix.

In the off-chance you don't like W11, you have 10 days to roll back to Windows 10. After 10 days, unless you follow the steps outlined in this instructional video, you may need to do a fresh install of Windows 10. Either way, this video will show you what to do: https://www.youtube.com/watch?v=2v9_-4JCh_U&ab_channel=Tips2Fix.

Kind Regards,

NonSequitur777

[LightGuy481]

So I finally found the answer in this posting:  https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/Z440-Workstation-T...

Apparently there is some kind of bug in the most recent BIOS that causes the TPM 2.0 to not perform the upgrade.  But I fortunately still had an older BIOS install still on my computer and rolled it back to a 2020 BIOS like some other users did and viola! The TPM 2.0 install ran correctly and it upgraded correctly.  I haven't rolled back up to the most recent BIOS yet but at least TPM 2.0 is installed now and is functioning correctly.

[LightGuy481]

Thanks, yes you still have to use one of those methods but it's really dumb that you have to do that because I did get TPM upgraded to 2.0 but there is no reason the CPU should fail because according to Win11 requirements you need SSE 4.2 which is part of the Xeon E5 series and that is the only major requirement of 24H2 because without SSE 4.2 24H2 won't run