PC & Mobile

Fix UcmUcsi.sys failed Blue Screen error on Windows 11/10

As a Windows 11 or Windows 10 PC consumer, you might have encountered BSOD errors on your machine. One of such error is the UcmUcsi.sys failed Blue Screen error. The UCMUCSI_FAILURE bug verify has a price of 0x000001D8, and it signifies that the UCSI class extension has encountered an error. This put up supplies probably the most appropriate options to repair this error.

What is UcmUcsi.sys?

USB Connector Manager UCSI Client recordsdata similar to UcmUcsi.sys make the most of the SYS file extension. This file is taken into account a Win64 EXE (Driver) file. The file is situated within the C:WindowsSystem32drivers listing; the place C: is the Windows set up drive – this letter may be totally different on your system.

When this error happens, the pc could cease responding and show the next error on a blue display screen:

What failed: UcmUcsi.sys

This error happens when the UCSI (USB Type-C Connector System Software Interface) choice is enabled within the BIOS. The UcmUcsi driver has encountered an error. The driver has discovered settings to set off a system crash as an alternative of a livedump.

UcmUcsi.sys failed Blue Screen error

A UCSI Command sometimes fails when UCSI firmware is just not responsive and UcmUcsiCx instances out on a UCSI command or the UCSI firmware has indicated an error in response to a important UCSI command despatched by UcmUcsiCx.

If you’re experiencing the UcmUcsi.sys failed Blue Screen error on your Windows 11/10 machine, you possibly can strive our really useful options under in no specific order and see if that helps to resolve the problem.

  1. Update UcmUcsi driver/Update firmware
  2. Disable UCSI choice in BIOS
  3. Run the Blue Screen Online Troubleshooter

Let’s check out the outline of the method concerned regarding every of the listed options.

If you possibly can log in usually, good; else you’ll have to boot into Safe Mode, enter Advanced Startup choices display screen, or use the Installation Media in addition to have the ability to perform these directions.

1] Update UcmUcsi driver/Update firmware

Update drivers and firmware

As we now have already recognized the motive force that’s triggering the BSOD error, to resolve the UcmUcsi.sys failed Blue Screen error that occurred on your Windows 11/10 machine, this answer requires you to replace the UcmUcsi driver in addition to replace the firmware.

Depending on your PC, producers have made obtainable particular driver obtain software program for his or her manufacturers that you should utilize to replace drivers and firmware:

  • Dell Update utility will aid you obtain or replace Dell Drivers.
  • Lenovo System Update helps you obtain Lenovo Drivers, Software, Firmware, Update BIOS.
  • AMD customers could use AMD Driver Autodetect.
  • Intel customers could use Intel Driver & Support Assistant.
  • HP customers can use the bundled HP Support Assistant.

You can think about using a third-party free driver replace software program. You can as effectively get the motive force updates (if obtainable) on the Optional Updates part below Windows Update. Also, if in case you have already downloaded the .inf or .sys file for the motive force, you possibly can manually replace drivers through Device Manager or replace driver through Command Prompt.

If your machine drivers in query are already updated or after updating the drivers the error in spotlight isn’t fastened, you possibly can proceed with the subsequent answer.

2] Disable UCSI choice in BIOS

Disable UCSI option in BIOS

To disable UCSI choice in BIOS on your Windows 11/10 laptop, do the next:

  • Boot into BIOS/UEFI firmware.
  • In BIOS Setup, choose Advanced.
  • Select System Options.
  • Locate USB Type-C Connector System Software Interface.
  • Uncheck the USB Type-C Connector System Software Interface choice.
  • Select Accept when the setting change notification seems.
  • Select Exit.
  • Select Yes to avoid wasting modifications and exit the BIOS.

The steps described above could differ relying on your PC make.

3] Run the Blue Screen Online Troubleshooter

Blue Screen Online Troubleshooter

In your try to repair any BSOD error, it’s really useful and finest apply to run the Blue Screen Online Troubleshooter and see if that resolves the problem. This automated Blue Screen Online Troubleshooter from Microsoft in some instances will repair BSOD errors on your Windows 11/10 machine. Alternatively, you too can troubleshoot blue display screen errors utilizing the SetupDiag instrument – a Microsoft instrument that may assist PC customers to diagnose and decide why an replace or improve failed to use, which is efficacious information that may assist resolve any issues.

That’s it! Hope you discover this put up useful sufficient.


What is USB connection supervisor?

The USB connector supervisor class extension acknowledges that the USB perform stack has loaded and therefore the system is within the incorrect state. It tells the UCSI driver to ship Set USB Operation Role and Set Power Direction Role requests to the firmware.

What are USB drivers?

A USB shopper driver is the software program put in on the pc that communicates with the {hardware} to make the machine perform. After profitable set up, Windows hundreds the shopper driver each time the machine is connected and unloads the motive force when the machine is indifferent from the host laptop.

Why do I would like USB drivers?

A software program driver is an integral part as a result of if it’s not put in correctly, the machine won’t work correctly. Drivers for USB gadgets are sometimes discovered on set up discs offered by the producer.

Read: How to obtain or replace USB Type C Drivers.

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