Solved Consistent TPM-WMI 1795 error events

Hi, as the title says I'm getting consistent 1795 TPM WMI errors in event viewer which are accompanied by system hitches that last from 1-5 seconds after about 5-7 minutes of uptime(Repeats every 12 hours). I imagine it's attempting to update secure boot or the keys or the firmware itself, but I checked on this forum first, ran the command to check if was already updated and it returned true. I've run sfc, am currently running DISM, updated BIOS, and attempted to run in safemode but it didn't seem to want to update when I entered safemode (which makes sense I guess).

I also cleared the TPM in Windows, reverted to BIOS defaults after my BIOS update, checked tpm.msc and everything looks fine (Says tpm is ready for use). This isn't a HUGE issue since it only happens on a fresh boot or as I just found out after having a long uptime (every 12 hours), but I imagine this might cause issues later down the line since I'm assuming that it's trying to update something and can't. This is also a relatively new windows 11 install, as I wiped my system drive to try to trobleshoot something unrelated to this. I've also attempted unplugging every USB device, ethernet, and aux from the PC after a fresh boot to see if the I/O error was from something there, but no dice.

The event viewer:
Event 1795, TPM-WMI
The system firmware returned an error The request could not be performed because of an I/O device error. when attempting to update a Secure Boot variable. For more information, please see Secure Boot DB and DBX variable update events - Microsoft Support

These TPM-WMI errors begun happening June 15th, which is also when my PC updated to 24H2 since I assume this is relevant (I have since uninstalled the update, but am still getting the errors).

I wouldn't make a thread here but truth be told there isn't a whole lot I could find on 1795, I can find quite a lot on 1796 but the closest to a fix I've seen is here where it says "Contact your device manufacturer to determine if a firmware update is available." and here that says (Updating the DBX isn’t always smooth sailing. Errors logged around these event codes hint that either the firmware or a vulnerable system module is creating conflicts. Microsoft’s advice? Look for firmware updates or other fixes from your device’s manufacturer. AND Audit Your Boot Configuration: Key Event IDs like 1033 and 1795 may signal mismatches in secure boot settings. Pay attention to the modules logged in these events.)

i7-13700k
PRIME Z790-P WIFI

Are you running latest bios
Version 1820
2025/05/21

Welcome.

As well as glasskuters mention:

Check TPM Operational Status
Open an elevated PowerShell and run:


Check for:

• IsActivated_InitialValue
• IsEnabled_InitialValue
• IsOwned_InitialValue

All should be True. If not, TPM may not be fully initialized or owned by the OS.


On the net I found the following:

Check Task Scheduler for Trigger
Search for any scheduled task that runs every 12 hours and interacts with TPM. Look in:

• Task Scheduler > Microsoft > Windows > TPM
• Task Scheduler > Microsoft > Windows > Device Setup
• Task Scheduler > Microsoft > Windows > BitLocker

Disable one at a time and observe.


Some TPM interactions go through chipset drivers, especially on AMD platforms (fTPM).

• Download latest chipset drivers from your motherboard or laptop vendor’s site
• Fully uninstall the current ones via Device Manager or Control Panel
• Reboot and install the new version (If there is one)

On Asus boards, the TPM is actually Intel PTT, which means it's part of the Intel Management Engine (ME). The latest BIOS updates the Intel ME to version 16.1.32.2473v3, but there is a newer version of the Intel ME firmware you could try, 16.1.35.2557_S.

pseymour said:

On Asus boards, the TPM is actually Intel PTT, which means it's part of the Intel Management Engine (ME). The latest BIOS updates the Intel ME to version 16.1.32.2473v3, but there is a newer version of the Intel ME firmware you could try, 16.1.35.2557_S.

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Click to expand...

Thank you, I knew Intel had integrated TPMs, but I don't know why I didn't think to update ME firmware (though I didn't have the drivers or software installed so I had to do that first)I don't want to give false hope, but I'm sitting at 16 minutes uptime currently and while it's possible I would've missed a stutter, I do not see any more errors in event viewer.

For those in the future looking here, I believe you can try this as a fix, and I also noticed Intel SPI Flash Controller was disabled in device manager and re-enabled that before updating the ME firmware & drivers. I'll keep my system on overnight and check event viewer later and mark this as solved if I don't see any logs.

Edit: rooting around in event viewer I find TPM-WMI log 1034 Secure Boot DBx update successfully - Log timed approximately 5 minutes of system uptime.