How to Download and Fix bcmfn2.sys?

Sometimes Windows system displays error messages regarding corrupted or missing bcmfn2.sys files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent bcmfn2.sys file can therefore effect in failed execution of the started process.

bcmfn2.sys file BCM Function 2 Device Driver. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of bcmfn2.sys related errors on your device. You can also download bcmfn2.sys file compatible with Windows 10, Windows 8.1 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download bcmfn2.sys

4.1 List of bcmfn2.sys file versions

File info

General information
Filename	bcmfn2.sys
File extension	SYS
Description	BCM Function 2 Device Driver

Software
Program	Windows (R) Win 7 DDK driver
Author	Windows (R) Win 7 DDK provider

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	© Broadcom Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common bcmfn2.sys file related problems

There are various types of errors related to bcmfn2.sys file. bcmfn2.sys file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to bcmfn2.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

bcmfn2.sys is corrupted
bcmfn2.sys cannot be located
Runtime Error - bcmfn2.sys
bcmfn2.sys file error
bcmfn2.sys file cannot be loaded. Module was not found
cannot register bcmfn2.sys file:
bcmfn2.sys file could not be loaded
bcmfn2.sys file doesn't exist

bcmfn2.sys

Application could not be started because bcmfn2.sys file is missing. Reinstall the application to solve the problem.

Problems related to bcmfn2.sys can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing bcmfn2.sys file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix bcmfn2.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

bcmfn2.sys file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with bcmfn2.sys file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to bcmfn2.sys file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of bcmfn2.sys or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to bcmfn2.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the bcmfn2.sys file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the bcmfn2.sys file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the bcmfn2.sys file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace bcmfn2.sys file

The last solution is to manually download and replace bcmfn2.sys file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded bcmfn2.sys file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of bcmfn2.sys file example directory paths.

Windows 10: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\drivers\

If the steps did not solve your bcmfn2.sys file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename bcmfn2.sys

System Windows 10

File size 8192 bytes

Date 2017-03-18

Download

File details
	MD5	0a42824014a36439aef4f524d891f659
	SHA1	9130756c6fa05f506c48c5e975cb545ae52dc0e9
	SHA256	43c8201ebfb6a39654c54335ebcf8f253bda2f4cd663c72f84018cc99714c021
	CRC32	03ba896e
	Example file location	C:\Windows\System32\drivers\

Filename bcmfn2.sys

System Windows 8.1

File size 16088 bytes

Date 2013-08-12

Download

File details
	MD5	596db7e4d0db6ac32df142c861001979
	SHA1	ca4f5ea64afde6865bdcbcc47408bb59d364748f
	SHA256	d7e2c2334f286778a485391c0e0ba19de2a7d2c3b94a74563c57d55eb0a8e858
	CRC32	587c0886
	Example file location	C:\Windows\System32\drivers\