Won't start

[CYC7668]

Hp all in one frozen on tpm screen. Keyboard is not working and I can't reset it.

[Pallipurath]

Hi @CYC7668 

Welcome to the HP Support Community.

Thank you for posting your query.

I understand that you're encountering an issue with your HP All-in-One computer that is stuck on the TPM (Trusted Platform Module) screen, and the keyboard isn't responding. This type of issue can be frustrating, but there are a few troubleshooting steps you can try:

Perform a Power Reset

• Disconnect all external devices (USB drives, printers, etc.).
• Turn off the computer and unplug the power cable from the wall outlet.
• Press and hold the Power button for about 15 seconds to discharge residual power.
• Reconnect the power cable directly to a wall outlet (avoid surge protectors).
• Turn the computer back on.

Check Keyboard Connection

• Wired keyboard:
• Ensure it’s firmly connected.
• Try a different USB port.
• Wireless keyboard:
• Replace batteries.
• Re‑pair the keyboard with the computer.
• If possible, test with another keyboard to rule out hardware failure.

Access BIOS/UEFI

• Restart the computer.
• As soon as it powers on, repeatedly press F10
• If successful, you’ll enter the BIOS/UEFI setup screen.
• Check that Secure Boot and TPM are enabled.

Reset TPM

• Inside BIOS/UEFI, look for Security > TPM Device or Trusted Platform Module.
• Select Clear TPM or Restore Defaults (wording varies by BIOS version).
• Save changes and exit BIOS.
• The computer will restart and reinitialize TPM.

Hope this helps, Please revert if the issue persists.

Take care and have an amazing day!