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Most of the bcmwl63a.sys errors you encounter are “Blue Screen of Death” errors (also known as “BSOD” or “STOP” errors) that occur in Windows.
Bcmwl63a.sys is a SYS file type connected to the Broadcom 802.11 Network Adapter wireless driver developed by Broadcom Corporation for the Windows operating system. The latest known version of Bcmwl63a.sys is 5.100.245.20, which was created for Windows 8. This SYS file has a popularity rating of 2 stars and a security rating of “UNKNOWN”.
It is actually a business killer, BSOD comes out of nowhere (pun intended to
As you may already know, the BCMWL63A.SYS is connected to your Flash player with Broadcom Wireless drivers and/or hardware acceleration.
Switch to safe mode
Restart your PC. When you access the login screen, hold down the Shift key while selecting Power > Restart.
After restarting your PC, select Troubleshooting > Advanced Options > Startup Settings > Startup Settings > Restart from the options screen.
After rebooting your PC, you will see a list of options > select 5 or F5 for safe mode with network.
Reinstalling video and sound card drivers
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On Windows, locate and open the Device Manager.
In the list of devices, expand the component to reinstall.
Right-click the device and select Uninstall (the same applies to audio drivers and display adapters).
Click the file and browse for hardware changes (which the drivers must automatically reinstall).
Update all other hardware drivers
Updating drivers is also an important step in troubleshooting if the device has a problem or generates an error, such as a device manager error code.
A driver update is not always a fixed task. An updated driver could provide new features for the hardware, which we regularly see on graphics cards and common sound cards.
Run CHKDSK
CHKDSK is a Windows utility that can check the integrity of your hard disk and correct various file system errors.
CHKDSK (or chkdsk.exe) is the abbreviation for “check disk”.
The floppy disk tool can be run from the command prompt or, if you can boot from My Computer > Properties > Tools in Windows, depending on which version of Windows you have installed on your PC.
To run CHKDSK on Windows:
This utility is available for Windows XP, Windows Vista, Windows 7 and Windows 8 or 8.1.
If you can boot under Windows, you can run the “Scan Disk” utility on any hard disk or partition you have in “My Computer”.
If you cannot boot the operating system, you can run the tool from the command prompt by starting your computer in recovery mode or using the original installation CD to run the command prompt.
If you have followed the above solutions, we hope they will help you solve your problem with bcmwl63a.sys bugs.
https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Thread-Exception-Not-Handled-bcmwl63a-sys-BSOD-when-running/td-p/5917695
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