HPZ420 installed the wrong TPM drivers

[OB22]

Hi I have HP Z420 I was trying to upgrade the TPM drives to 2.0.

I installed the wrong drives I installed HPZ840 TPM 2.0 drivers.

Now the PC keep restarting it self.

How can I undo this if I reset the BIOS would the driver of TPM will disappear?

I can log into safe mode.

Please help.

[itsmyname]

>   Now the PC keep restarting it self.

But, you can log into safe mode. This implies that the device-drivers are loaded by Windows, as Windows starts, i.e., not by the BIOS when you power-on the motherboard.

> How can I undo this if I reset the BIOS would the driver of TPM will disappear?

I would not try a complete "reset" of the BIOS, especially not as the FIRST thing that I would try.

However, in BIOS-setup, can you "disable" the TPM, so that when Windows is starting, it does not "see" the TPM hardware?  If Windows starts normally, can you "uninstall" the wrong software?

Or, if Windows starts normally, can you use "System Restore" to time-warp your copy of Windows back to a date/time before the incorrect software was installed?

[DGroves]

tpm is FIRMWARE..........that resides on a separate chip on the motherboard

the tpm updater always checks the current version (by reading a pre done script file) before beginning a update and abbots if  the correct firmware is not found. did you mess with the script file?

you might (and i say MIGHT) be able to modify the tpm script file to force a install of the correct firmware

IE--- if tcurrent tpm= xxx.xxxx.xxxxx then use this file xxxx.xxxx.xxx.xxxx

[John_McClane]

Unless I am mistaken, there is no original TPM 1.2 (Infineon IFX v3.19) version available to reflash for the Z420 with this method.  😥😪😫