Fix msfs.sys Errors

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

msfs.sys file Mailslot 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 msfs.sys related errors on your device. You can also download msfs.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP

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 msfs.sys

4.1 List of msfs.sys file versions

File info

General information
Filename	msfs.sys
File extension	SYS
Description	Mailslot 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.)

Most common msfs.sys file related problems

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

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

msfs.sys

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

Problems related to msfs.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 msfs.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 msfs.sys errors in just few steps?

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

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

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

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

Windows 10: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8: 1: C:\Windows\System32\drivers\
Windows 7: C:\Windows\System32\drivers\
Windows Vista: C:\Windows\System32\drivers\
Windows XP: ---

If the steps did not solve your msfs.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 msfs.sys

System Windows 10

File size 24064 bytes

Date 2017-03-18

Download

File details
	MD5	66084ec37dfe5e8f5fa7156fe54eca6f
	SHA1	7630ae18b53ab47c99e1624097ca0088eb17bf09
	SHA256	fbc865a952ae9d3a78ae122cb1589088dee7cce29b614ed85a89a45b75015ad1
	CRC32	5ab774fe
	Example file location	C:\Windows\System32\drivers\

Filename msfs.sys

System Windows 8.1

File size 24064 bytes

Date 2013-08-22

Download

File details
	MD5	d99c98d630c34a448a93de552dc7dd68
	SHA1	328c3b54942948d7858993212cf2eb82a707e500
	SHA256	b3a216b119737476182b3cd080b3466506d673ed2889c9f8c36f0e92a4657029
	CRC32	3f2ec6d9
	Example file location	C:\Windows\System32\drivers\

Filename msfs.sys

System Windows 8

File size 21504 bytes

Date 2012-07-26

Download

File details
	MD5	651def4337dd77e6a607cee49d3c4b30
	SHA1	8bdf1e44ccaa1817308f3bef32a0d580bdd29c85
	SHA256	c236987022aaf21bcf076d73d51a93dd12cafdadc3cc2291790ef1f5b54cc4aa
	CRC32	5807168e
	Example file location	1: C:\Windows\System32\drivers\

Filename msfs.sys

System Windows 7

File size 26112 bytes

Date 2009-07-13

Download

File details
	MD5	aa3fb40e17ce1388fa1bedab50ea8f96
	SHA1	d428b21a0a1b886f834525a465b73e6629130346
	SHA256	69f93e15536644c8fd679a20190cfe577f4985d3b1b4a4aa250a168615ae1e99
	CRC32	fd423224
	Example file location	C:\Windows\System32\drivers\

Filename msfs.sys

System Windows Vista

File size 26112 bytes

Date 2008-01-21

Download

File details
	MD5	704f59bfc4512d2bb0146aec31b10a7c
	SHA1	2186f7883cd24acbc503e8a2e7c1905d7597b0f6
	SHA256	f7712944ddc192c47953d577be31b79b4d11217305b1c3d0dca31b1518cb8dcb
	CRC32	8a244f31
	Example file location	C:\Windows\System32\drivers\

Filename msfs.sys

System Windows XP

File size 19072 bytes

Date 2008-04-14

Download

File details
	MD5	c941ea2454ba8350021d774daf0f1027
	SHA1	e3d2f7478e8d10984ec053eb130753a56c7149dc
	SHA256	c940e978c7b66a713a0fdab54b5f995df59d089afcd96221dd3222948cd49bbd
	CRC32	eddd458e
	Example file location	---