SYSTEM THREAD EXCEPTION NOT HANDLED (Idiagio.sys) BSOD

The Windows 10 has been causing various Blue screen of Death (BSOD) issues for users. It looks like these issues primarily affect Lenovo ThinkPad models. If you are facing this issue, then this article has you covered.

It can also occur for other drivers like nviddmkm.sys or atikmpag.sys, dxgmms2.sys, CMUSBDAC.sys, iaisp64 sys, PCI.sys, Netwtw04.sys, etc.

Before we deep dive into the solution, let us first understand what and how severe the problem is at the core:

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Here the drive Idiagio.sys has led to this Stop Error.

Lenovo has outlined a number of issues being faced by ThinkPad users. These problems are the result of the August 2020 cumulative update. We take a look:

Most users have encountered Blue Screen of Death (BSOD) when booting, starting Lenovo Vantage, or running the Windows Defender Scan, unfortunately. Interestingly, this sudden influx of BSOD problems seems limited to ThinkPad models manufactured in 2019-2020. You may see the following symptoms:

• Blue Screen of Death (BSoD) when booting
• Blue Screen of Death (BSoD) when starting Lenovo Vantage
• Blue Screen of Death (BSoD) when running Windows Defender Scan
• Can’t login by Face with Windows Hello
• Errors in Device Manager related to Intel Management Engine
• Errors in Device Manager related to IR Camera.

SYSTEM THREAD EXCEPTION NOT HANDLED (Idiagio.sys)

First things first, ensure that you have already created a System Restore Point so that if anything goes wrong, you can easily revert to earlier settings and configurations.

Disable the Enhanced Windows Biometric Security setting

1. Boot into the BIOS Setup settings on your Lenovo ThinkPad.
2. Navigate to ‘Security > Click on ‘Virtualization.’
3. Disable the Enhanced Windows Biometric Security setting.
4. Boot to Windows 10 desktop.

If the above-mentioned solution doesn’t work for some reason, well, you can try fixing the device drivers under the Device Manager settings.

Fix Device Drivers under Device Manager settings

1. Boot your Lenovo ThinkPad into the Safe Mode.
2. Navigate to the Device Manager
3. Watch out for the drivers responsible for the error with a small yellow exclamation mark.
4. If none of the entries are denoted using a small yellow exclamation mark, pay attention to sub-entries like C-Media USB Audio Class driver under Sound, video, and game controllers.

Alternatively, you can either update or rollback the driver. If that doesn’t work, you can uninstall the old drivers and replace them with the new ones.

We expect a fix to be released soon.