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Download wmbclass.sys to Fix Errors

Sometimes Windows system displays error messages regarding corrupted or missing wmbclass.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 wmbclass.sys file can therefore effect in failed execution of the started process.

wmbclass.sys file Windows Mobile Broadband Class NDIS Miniport. 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 wmbclass.sys related errors on your device. You can also download wmbclass.sys file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8

File info

General information
Filename wmbclass.sys
File extension SYS
Description Windows Mobile Broadband Class NDIS Miniport
Software
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
Details
MIME type application/octet-stream
File type Driver
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)
wmbclass.sys

There are various types of errors related to wmbclass.sys file. wmbclass.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 wmbclass.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

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

wmbclass.sys

Error

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

OK

Problems related to wmbclass.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 wmbclass.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.

wmbclass.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

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with wmbclass.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.

Windows Update

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

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. 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 wmbclass.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

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 wmbclass.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the wmbclass.sys file with properly working version. To use the tool:

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

Step 4: Restoring Windows system

Windows Recovery

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

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

If all the above-mentioned methods failed and the wmbclass.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 wmbclass.sys file

The last solution is to manually download and replace wmbclass.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 wmbclass.sys file.

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

  • Windows 10: C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_84db21dba01dcea1\
  • Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_c6a87ac987cb59fd\
  • Windows 8: 1: C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_c6a87ac987cb59fd\

If the steps did not solve your wmbclass.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 wmbclass.sys
System Windows 10
File size 265216 bytes
Date 2017-03-18
File details
MD5 d42b0a6aa0f4c2bdf024160d2f210e12
SHA1 39b9e468c1cefa055ed89f073564f74f31290f7d
SHA256 2acdbeae6400780db8652e53b4122181a3d2f3e4987c341a0b7476a4ebfa71f6
CRC32 a0985ea3
Example file location C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_84db21dba01dcea1\
Filename wmbclass.sys
System Windows 8.1
File size 224256 bytes
Date 2014-11-21
File details
MD5 089bdb7e0232aece998bac28d779d610
SHA1 f061d0267a686fb66392968b5432b9ce21c2cc8d
SHA256 d265567e167d25eb96a402ff1b2ce5043e37bb21a8e4cde2b5af7e63c0e2ade3
CRC32 9cf92345
Example file location C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_c6a87ac987cb59fd\
Filename wmbclass.sys
System Windows 8
File size 191488 bytes
Date 2012-07-26
File details
MD5 3c9ca95ab603a8fa8dd8d354007f6a54
SHA1 99cb3561d80d48cb43f6a52098f00e3ee748b4c1
SHA256 e22e2588a1081d156bf22d6db05162054c71bc7e80b3bdb7d21639b84c4c0788
CRC32 67f4159c
Example file location 1: C:\Windows\System32\DriverStore\FileRepository\netwmbclass.inf_x86_c6a87ac987cb59fd\