Windows 10: PC Won’t boot after installing new CPU and enabling TPM.

I just installed a new Ryzen 7 1700x into my Dell Inspiron 5675, upgrading from my Ryzen 3 1200.At first, a message came asking whether or not i wanted to reset my fTPM keys. After clicking ‘Yes’, I had never used bitlocker in my life my PC would not load into Windows 11, and now gives an infinite loop showing ‘Preparing automatic repair’.I struggled, but after hours, I managed to somehow reinstall Windows even though it had broken previous times when restarting due to the boot loop. I was able to run it but after enabling TPM in the BIOS the boot loop returns, and the problem persists.When

:)

 

PC Windows 11 Upgrade - Secure Boot and TPM 2.0

Thank you for the reply and info @dashdotdot

I have a few follow up questions if that's ok!

I have gone into BIOS settings before to enable TPM 2.0 and enable secure boot but as you said the PC did not boot up and I had to short one of the components of the PC to reset to default settings before,

What would the step by step process be to update to windows 11?

I was told before to enable TPM in BIOS then use a USB with Windows 11 on it to install it. Is there a simpler way?

 

Being told that my new PC is not compatible with Windows 11

Not necessary every new PC is compatible with Windows 11.

Is TPM and secure boot enabled?

Refer this for compatible CPU list (AMD):

Windows processor requirements Windows 11 supported AMD processors | Microsoft Learn

As per current list, your CPU isn't listed there.

 

TPM Attestation Not Supported after Upgrading CPU

Hi,

after Upgrading my CPU from Ryzen 5 2600 to Ryzen 7 5700x Windows Security Chip App reports "Attestation: Not Supported" but "Memory: Ready".

In die TPM Console it shows that the TPM Module is Ready for use.

The Registry Key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TPM\WMI\Endorsement\EKCertStore\Certificates is empty with the R 7 5700x but has an entry when I use my old CPU.



I already tried to reset TPM, CMOS and Secureboot in Bios and in Windows TPM Console.

I disabled/enabled fTPM and Secure Boot several times.

Windows 10 and Windows 11 report the same. I already did a complete reinstall.

fTPM, Securechip, UEFI and Secureboot are enabled in BIOS.

Latest BIOS Updates and Windows Updates are installed.

The Windows Device Manager shows no errors. The AMD PSP 11.0 and TPM 2.0 is installed correctly.

When I switch back to my old Ryzen 5 2600 everything works.

I also cannot find my CPU on the Microsoft Windows 11 AMD CPU Support List.....



My Setup:

Mainboard: ASUS TUF X470-PLUS GAMING

BIOS: Version 6042 from 2022/05/12

CPU: AMD Ryzen 7 5700x

Windows 10 x64 22H2 (also tried with Win11 fresh installed/updated)