One of the most frustrating issues on Windows is the Blue Screen error. Many people find it challenging to troubleshoot BSOD problem whenever they see it on their screen. An example is the SECURE_FAULT_UNHANDLED 0x18D.
Error code 0x0000018D is often associated with security issues or hardware problems. Fortunately, you can always try to fix bug check and stop errors with easy solutions such as the ones below.
Possible Fixes for SECURE_FAULT_UNHANDLED 0x18D Blue Screen Error on Windows 11 PC

If you are facing the SECURE_FAULT_UNHANDLED 0x18D BSOD stop error with 0x18D error code on your Windows 11 device, follow the steps below.
Check Issue via Windows Memory Diagnostic tool
Open the Run Dialogue Box by pressing Windows key + R and type the command: mdsched.exe. Click OK.
Next, click Restart now and check for problems (recommended). Wait for your device to restart. It will check possible problems causing the Blue Screen error.
Start your PC in Safe Mode
First, you need to access the Windows Recovery Environment. To do so, go to the Settings app and open System. Head over to Recovery and select Advanced startup. Click Restart now.
After restart, click Troubleshoot and go to Advanced options. Select Startup Settings and click Restart. Now, select the option to run Windows in Safe Mode.
Update Problematic Drivers
Click the Start button and use the Search box to open the Device Manager window. Expand each category and locate a driver with an exclamation mark. This indicates an issue with the said driver. Right click on it and click Update Driver. Select Search Automatically for Drivers. Now, wait for the search to finish.
Run the Blue Screen Troubleshooter
Open the Get Help window on your Windows PC. Look for the Troubleshoot blue screen error option. Now, follow the instructions given.
Update your Windows 11 Version on your PC
Launch the Settings app and select Windows Update. Click Check for updates. Wait for the installation to finish and reboot your computer.
Wrapping Up!
Encountering a Blue Screen error can be intimidating. But, with some help, you can resolve the issue and get your PC back to its normal function.