PlainError

HTTP_E_STATUS_NOT_FOUND: 0x80190194: SCEP certificate registration failed

Last checked 2026-10-29 · 3 fixes · reviewed answer

TL;DRWindows tried to register a security certificate for your PC's built-in TPM security chip with Microsoft's attestation service and got a 404 (not found) back. On a home PC that isn't managed by a work or school, this Event Viewer error is usually harmless and doesn't affect normal use.

Most likely cause: Windows' background TPM attestation task can't enroll your AMD firmware TPM's key with Microsoft's service (the amd-keyid-...microsoftaik.azure.net address in the event)

Try first: Check whether your PC is managed by a work or school (dsregcmd /status)

Likely causes

  1. Windows' background TPM attestation task can't enroll your AMD firmware TPM's key with Microsoft's service (the amd-keyid-...microsoftaik.azure.net address in the event)most likely
  2. Outdated BIOS/UEFI or TPM firmware on the motherboardpossible
  3. A work or school device-management policy (Intune, Autopilot) that needs TPM attestation is set up but can't reach the serviceless likely

How to fix it

Safest first: SafeChanges settingsDangerous
  1. Check whether your PC is managed by a work or schoolSafe

    Open Command Prompt and run this read-only check. If AzureAdJoined and EnterpriseJoined both say NO, and you don't use your PC for a work account, you can safely ignore this error.

    dsregcmd /status
  2. Install the latest Windows updatesSafe

    Open Windows Update, click Check for updates, and install everything offered, including optional driver updates. Restart afterward.

    ms-settings:windowsupdate
  3. Update your BIOS/UEFI and AMD chipset driversChanges settings

    Get the newest BIOS and AMD chipset driver from your motherboard or PC maker's support page for your exact model, and follow their instructions. Newer firmware often updates the firmware TPM.

    ⚠ Keep the PC plugged in and don't turn it off during a BIOS update. Interrupting it can leave the PC unable to start.

If that didn't fix it

If your PC isn't work or school managed and everything else works normally, leave it: the error only shows up in Event Viewer. If it is managed and sign-in, device enrollment or compliance is failing, send the event details to your IT team.

When to see a technician

Contact your IT team or a technician if a work or school account can't enroll the device, Windows Hello or BitLocker stops working, or Windows Security reports a problem with the security processor (TPM).

Quick answers

What does HTTP_E_STATUS_NOT_FOUND: 0x80190194: SCEP certificate registration failed mean?
Windows tried to register a security certificate for your PC's built-in TPM security chip with Microsoft's attestation service and got a 404 (not found) back. On a home PC that isn't managed by a work or school, this Event Viewer error is usually harmless and doesn't affect normal use.
What causes HTTP_E_STATUS_NOT_FOUND: 0x80190194: SCEP certificate registration failed?
Windows' background TPM attestation task can't enroll your AMD firmware TPM's key with Microsoft's service (the amd-keyid-...microsoftaik.azure.net address in the event). (most likely) Outdated BIOS/UEFI or TPM firmware on the motherboard. (possible) A work or school device-management policy (Intune, Autopilot) that needs TPM attestation is set up but can't reach the service. (less likely)
How do I fix HTTP_E_STATUS_NOT_FOUND: 0x80190194: SCEP certificate registration failed?
Try these in order, safest first: 1. Check whether your PC is managed by a work or school. 2. Install the latest Windows updates. 3. Update your BIOS/UEFI and AMD chipset drivers.
What if that didn't fix it?
If your PC isn't work or school managed and everything else works normally, leave it: the error only shows up in Event Viewer. If it is managed and sign-in, device enrollment or compliance is failing, send the event details to your IT team.
When should I see a technician?
Contact your IT team or a technician if a work or school account can't enroll the device, Windows Hello or BitLocker stops working, or Windows Security reports a problem with the security processor (TPM).
Did this fix it? Report a problem

Related errors

All Windows / PC errors →