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Repair and Download vmbus.sys Now

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

vmbus.sys file Microsoft Hyper-V Virtual Machine Bus Child 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 vmbus.sys related errors on your device. You can also download vmbus.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7

File info

General information
Filename vmbus.sys
File extension SYS
Description Microsoft Hyper-V Virtual Machine Bus Child Driver
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.)
vmbus.sys

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

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

vmbus.sys

Error

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

OK

Problems related to vmbus.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 vmbus.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.

vmbus.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 vmbus.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 vmbus.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 vmbus.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 vmbus.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the vmbus.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 vmbus.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 vmbus.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 vmbus.sys file

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

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

  • Windows 10: C:\Windows\System32\drivers\
  • Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\wvmbus.inf_x86_cac08a83c031df80\
  • Windows 8: 1: C:\Windows\System32\DriverStore\FileRepository\wvmbus.inf_x86_cac08a83c031df80\
  • Windows 7: ---

If the steps did not solve your vmbus.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 vmbus.sys
System Windows 10
File size 81312 bytes
Date 2017-03-18
File details
MD5 f50269b1b326889f2ecb7a59c29112c7
SHA1 46f8dffde1eea6b219bf466836f47e1abd7901e0
SHA256 db6bde08099fa7a2900a2b3977043d0288a13eb31ed53b7133c0b3ce38c0daf1
CRC32 dd9cde8f
Example file location C:\Windows\System32\drivers\
Filename vmbus.sys
System Windows 8.1
File size 91792 bytes
Date 2014-11-21
File details
MD5 4b0f9788514f5cd6e19392b2aa71fe53
SHA1 d0f17bf3d05b749dc0a744e6eecaa778b3f9f608
SHA256 de3e007a55e5891124fd46ec97a1b51915af0d400b626ff177304775a609c39e
CRC32 d3783776
Example file location C:\Windows\System32\DriverStore\FileRepository\wvmbus.inf_x86_cac08a83c031df80\
Filename vmbus.sys
System Windows 8
File size 130024 bytes
Date 2012-07-26
File details
MD5 2e4777120fc246ccf76a69c7bb4aef57
SHA1 998fb735394b468bc3f42e19b219982c2a67b839
SHA256 fa156e7d1b19375fb5b8ab8e2e925fdc68d709109fee4e5cdd785e666ab653ac
CRC32 519f468d
Example file location 1: C:\Windows\System32\DriverStore\FileRepository\wvmbus.inf_x86_cac08a83c031df80\
Filename vmbus.sys
System Windows 7
File size 199552 bytes
Date 2010-11-21
File details
MD5 86ea3e79ae350fea5331a1303054005f
SHA1 ba9eea5fd300dc931c974fa9ef871c290ab0962f
SHA256 7e7d6027eb41e591633c7383a5d29a3ba8ecfc08c177d2bcf741ee27686b1691
CRC32 c2255c19
Example file location ---