Microsoft Windows SYS bcmfn2.sys

Downloading and Repairing Bcmfn2.sys

Last Updated: 11/24/2023
[Reading Time Required: 3.5 minutes]

bcmfn2.sys uses the SYS file extension, which is more specifically known as a BCM Function 2 Device Driver file. It is classified as a Win32 EXE (Driver) file, created for Windows (R) Win 7 DDK driver by Microsoft.

The first version of bcmfn2.sys was released for the Windows 8.1 Operating System on 10/18/2013 inside Windows 8.1. The latest file version for Windows 10 is v6.3.9600.17336 released on 07/29/2015.

In this short article, you will discover detailed file information, steps for troubleshooting SYS file problems with bcmfn2.sys, and list of free downloads for every version that exists in our comprehensive file directory.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	bcmfn2.sys
File Extension:	SYS file extension
Description:	BCM Function 2 Device Driver
Object File Type:	Driver
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Windows (R) Win 7 DDK provider
Software Program:	Windows (R) Win 7 DDK driver
Legal Copyright:	© Broadcom Corporation. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	Private build
File Flags Mask:	0x003f
Entry Point:	0x178a
Code Size:	4608

View Other bcmfn2.sys Information

File Info	Description
File Size:	8.0 kB
File Modification Date/Time:	2017:03:18 18:18:17+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2016:11:01 02:09:09+00:00
PE Type:	PE32
Linker Version:	11.0
Code Size:	4608
Initialized Data Size:	4608
Uninitialized Data Size:	0
Entry Point:	0x178a
OS Version:	6.3
Image Version:	6.3
Subsystem Version:	6.3
Subsystem:	Native
File Version Number:	6.3.9600.17336
Product Version Number:	6.3.9600.17336
File Flags Mask:	0x003f
File Flags:	Private build
File OS:	Windows NT 32-bit
Object File Type:	Driver
File Subtype:	7
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Windows (R) Win 7 DDK provider
File Description:	BCM Function 2 Device Driver
File Version:	6.3.9600.17336
Internal Name:	bcmfn2.sys
Legal Copyright:	© Broadcom Corporation. All rights reserved.
Original Filename:	bcmfn2.sys
Product Name:	Windows (R) Win 7 DDK driver
Product Version:	6.3.9600.17336

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are bcmfn2.sys Error Messages?

bcmfn2.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with bcmfn2.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of bcmfn2.sys errors can be cause by hardware problems, outdated firmware, corrupt drivers, or other software-related (eg. Windows update) issues. Some of these errors include:

bcmfn2.sys could not be found.
bcmfn2.sys failed to load.
The file bcmfn2.sys is missing or corrupt.
Windows failed to start - bcmfn2.sys.

A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: bcmfn2.sys.

:( Your PC ran into a problem that it couldn't handle, and now needs to restart. You can search for the error online: [BSOD] (bcmfn2.sys).

STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (bcmfn2.sys) STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (bcmfn2.sys) STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (bcmfn2.sys) STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (bcmfn2.sys) STOP 0x0000000A: IRQL NOT LESS EQUAL (bcmfn2.sys) STOP 0×0000007A: KERNEL DATA INPAGE (bcmfn2.sys)

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter bcmfn2.sys BSOD errors after you've installed new hardware, software (Windows), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to bcmfn2.sys Blue Screen of Death errors. Therefore, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

GEEK TIP : As a rule of thumb, it's always a good idea to create a Windows "Snapshot" backup / System Restore Point before making any hardware or software changes to your computer. That way, it's very easy to restore your system in the unfortunate event you encounter a bcmfn2.sys Blue Screen of Death error after recent changes.

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How to Fix bcmfn2.sys Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your bcmfn2.sys issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the bcmfn2.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing bcmfn2.sys file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt bcmfn2.sys files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for bcmfn2.sys issues and any other system file problems.
Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many bcmfn2.sys error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the bcmfn2.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your bcmfn2.sys File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate bcmfn2.sys file version. We maintain a comprehensive database of 100% malware-free bcmfn2.sys files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download bcmfn2.sys Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy the file into the appropriate directory for your Windows version:

Windows 8.1: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\bcmfn2.inf_x86_0a6266a490fd6b9f\
Windows 10: C:\Windows\System32\drivers\
Windows 10: C:\Windows\System32\DriverStore\FileRepository\bcmfn2.inf_x86_82037d4399618886\

Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve bcmfn2.sys problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download bcmfn2.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying bcmfn2.sys to your appropriate Windows system directory. Microsoft typically does not release Windows SYS files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing bcmfn2.sys and all other SYS files for Windows. An incorrectly installed SYS file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

File Name

Software Version

File Version

Architecture

bcmfn2.sys

6.3.9600.17336

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Windows (R) Win 7 DDK driver
Software Version:	6.3.9600.17336
File Version:	6.3.9600.17336
File Size:	8192
File Date:	03/18/2017
MD5 Checksum:	0a42824014a36439aef4f524d891f659
SHA1 Checksum:	9130756c6fa05f506c48c5e975cb545ae52dc0e9
SHA256 Checksum:	43c8201ebfb6a39654c54335ebcf8f253bda2f4cd663c72f84018cc99714c021
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	4608
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.3
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

bcmfn2.sys

6.3.9391.6

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Windows (R) Win 7 DDK driver
Software Version:	6.3.9391.6
File Version:	6.3.9391.6
File Size:	16088
File Date:	08/12/2013
MD5 Checksum:	596db7e4d0db6ac32df142c861001979
SHA1 Checksum:	ca4f5ea64afde6865bdcbcc47408bb59d364748f
SHA256 Checksum:	d7e2c2334f286778a485391c0e0ba19de2a7d2c3b94a74563c57d55eb0a8e858
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	4608
Linker Version:	12.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.3
File Modification Date/Time:	08/12/2013

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Files Related to bcmfn2.sys

SYS Files Related to bcmfn2.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
rndismp6.sys	Remote NDIS Miniport	Microsoft® Windows® Operating System (6.3.9600.16496)	30720	C:\Windows\Fonts\
pacer.sys	QoS Packet Scheduler	Microsoft® Windows® Operating System (6.3.9600.17415)	122368	C:\Windows\Panther\UnattendGC\
disk.sys	PnP Disk Driver	Microsoft® Windows® Operating System (10.0.15063.0)	84384	C:\Program Files (x86)\MDickie\Wrestling MPire ...
rdyboost.sys	ReadyBoost Driver	Microsoft® Windows® Operating System (6.2.9200.16384)	173296	C:\Windows\Panther\UnattendGC\
vgapnp.sys	Windows System Configuration	Windows Vista	29184	C:\Windows\Fonts\

Other Files Related to bcmfn2.sys

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OneX_v1.xsd	XML Schema Definition	Windows 8.1	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 10	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Microsoft Office Access 2010 14	6201	C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 10	7548	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 10	18585	C:\Windows\L2Schemas\

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