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07-27-2025 12:20 AM
I assume you are referring to your previous post: https://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/bsod/m-p/9445771.
If so, let me try to answer it.
Btw, thank you for the detailed error log -this is helpful.
OK, the Event ID 1796 with: HRESULT 0x800700C1 usually means “The application is not a valid Win32 application,” which in this context suggests the Secure Boot variable update failed, likely due to one of the following:
Possible Causes & Fixes:
1. BIOS/Firmware Needs Update:
Some HP laptops require a BIOS update to fully support Secure Boot updates under newer Windows builds like 24H2.
Check your current BIOS version:
Press Win + R, type msinfo32, and look for BIOS Version/Date.
Visit HP Support for the HP 250 G8 and compare with the latest BIOS version listed.
If you're behind, update the BIOS using HP's official SoftPaq installer.
2. Corrupt or Incomplete Secure Boot Variables:
If Windows or the firmware can’t access or update Secure Boot variables, errors like this can occur.
Try clearing and reinitializing Secure Boot variables:
Warning: Proceed only if you're comfortable with BIOS settings.
Reboot and enter BIOS/UEFI (Esc > F10 on HP at startup).
Navigate to Security > Secure Boot Configuration.
Select “Clear Secure Boot Keys” or “Restore Factory Keys” (varies by BIOS).
Save changes and reboot.
Test again.
3. TPM Chip or PTT Firmware Bug:
Sometimes, the issue is with the TPM firmware or Intel PTT (Platform Trust Technology).
To reset the TPM:
Open Windows Security > Device Security > Security processor details.
Select Security processor troubleshooting.
Click Clear TPM (you’ll need to reboot).
You can also reset TPM via BIOS:
In BIOS, under Security > TPM Device, choose “Reset to Factory Defaults”.
4. Temporary Workaround:
If the BSOD keeps recurring and you're willing to temporarily disable Secure Boot:
Boot into BIOS.
Disable Secure Boot under Security > Secure Boot Configuration.
Save and exit.
This should bypass the Secure Boot update attempt -though not ideal, it could restore stability while awaiting a BIOS/firmware fix from HP.
Reference:
Microsoft’s official link from the error message: https://support.microsoft.com/en-us/topic/secure-boot-db-and-dbx-variable-update-events-37e47cf8-608....
This just confirms the error is Secure Boot-related but doesn’t give laptop-specific fixes -BIOS/TPM resets are usually the key.
Kind Regards,
NonSequitur777