How to Fix Portcls.sys Blue Screen of Death Windows 10/11?

Portcls.sys is one of the stop errors that you might run into when running Windows 10/11.

It will freeze your setup and after a while restarts without any warning to you.

If you wonder what to do now, then this post onMiniTool Websiteis for you.

Portcls.sys Blue Screen of Death

Portcls.sys refers to the Microsoft Class Driver for the Port-Miniport devices system.

It is responsible for the activities, launches, and launches of many applications.

As soon as portcls.sys is damages, it will trigger issues with the PC.

Whats worse, you will lose some data on your system.

Therefore, why not back up your critical files as a precaution?

Heres how to do it:

Step 1.

Right-select theStarticon and selectDevice Managerfrom the drop-down menu.

ExpandSound, video, and game controllersorAudio inputs and outputsand right-choose the problematic unit to chooseUninstall unit.

Next, tickDelete the driver software for this deviceand hitUninstall.

In this case, consider removing them with the steps below:

Step 1.

PressWin+Rto open theRundialog box.

Typeappwiz.cpland hitEnterto openPrograms and Features.

Now, it’s possible for you to view all the programs installed on your setup.

Scroll down from the list to find the newly installed programs and right-hit it to chooseUninstall.

After it is removed from your PC, reboot your gear to see if portcls.sys failure is gone.

Heres how to do it:

Step 1.

Go toUpdate & Security>Windows Security>Virus & threat protection.

Click onScan options> tickFull scan> hitScan now.

you’ve got the option to useSystem File Checkerto detect and repair the corrupted system files.

Heres how to do it:

Step 1.

Typecmdin the search bar to locateCommand Prompt.

Right-press it to chooseRun as administrator.

In the command window, typesfc /scannowand hitEnter.

After the process is down, reboot your box.

CHKDSK vs ScanDisk vs SFC vs DISM tutorial.