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Last updated: Sep 12, 2022

4 ways to deal with system thread exception not handled (bcmwl63a.sys) error

The bcmwl63a.sys Windows 10 error is one of the blue screen errors. You may encounter it due to incompatibility or due to improper installation of the wireless drivers on your computer. Due to this blue screen error, you will not be able to seamlessly enter the operating system. This article will clearly show you how to resolve the bcmwl63a.sys error while retaining all data from the disk.

In this article you will find out:

  • how to get rid of the bcmwl63a.sys Windows 10 error
  • how to protect your data

Are you ready? Let's read!

Let's deal with this error

Here go 4 methods that may help you to solve the bcmwl63a.sys blue screen error.

Hint 1: Check drivers

To fix the "system_thread_exception_not_handled (bcmwl63a.sys)" error, you must check the drivers. Most likely, they need to be updated.

So, press the Windows + R keys to open the Run dialog box.

Then type devmgmt.msc in the field and press the Enter key to enter the Device Manager section. In the next window, expand the network adapter, select the driver, right-click it, and select Update Driver.

To make the process faster and easier, select "Search automatically for driver updates" and follow the wizard's recommendations. When the procedure is complete, restart your computer and check if the blue screen error has been resolved.

Hint 2: Roll them back, if it is needed

If the driver was recently updated, then the reason for this error is most likely driver incompatibility. In this case, you can roll back the driver and thus get rid of the error bcmwl63a.sys Windows 10.

Just like in the previous method, open the device manager and select the newly updated driver with the right mouse button.

Then click from the list and go to the Drivers tab. Here, select the option "Roll back driver"; then you need to follow the instructions of the wizard to continue.

Once the procedure is complete, restart your computer and check if the blue screen of death issue is resolved.

Hint 3: Check memory

Try running a memory diagnostic tool to scan for and fix any logical memory problems you find.

To do this, press the Windows + R keys simultaneously and thus open the Run dialog box. Then enter mdsched.exe and click OK.

In the new window, select "Restart Now" and check for problems (recommended).

Also, restart your computer and check if the bcmwl63a.sys error is resolved.

Hint 4: Use sfc

This error bcmwl63a.sys relates to a system error, so it makes sense to solve this problem by using the System File Checker tool.

To do this, open a command prompt as administrator and, in the pop-up window, enter the sfc /scannow command, then press Enter to continue.

Use sfc to fix bcmwl63a.sys blue screen error.

Do not close the Command Prompt window until you see that the scan is 100% complete; only then can you restart your computer.

Protect your data

If you need to recover some data from the disk, do it now (otherwise, there is a high probability of data overwriting, after which no file can be recovered).

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Disk imaging is an excellent option for saving a working system configuration along with data. The disk image can be stored indefinitely, and you can only use it when needed. This option is free in DiskInternals Partition Recovery.

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