How to Repair mup.sys? Download Now

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

mup.sys file Multiple UNC Provider 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 mup.sys related errors on your device. You can also download mup.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 mup.sys

4.1 List of mup.sys file versions

File info

General information
Filename	mup.sys
File extension	SYS
Description	Multiple UNC Provider 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 mup.sys file related problems

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

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

mup.sys

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

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

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

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of mup.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 mup.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 mup.sys

System Windows 10

File size 100768 bytes

Date 2017-03-18

Download

File details
	MD5	f1d130e347102d4704d0c3924420d514
	SHA1	0fc24368d2d10a5515b8a7cf2c05a5f45bb883c4
	SHA256	562e85333534ffc38947b0bdcef6e7de40213588f28d15f5a2b06307a4383bff
	CRC32	5a21ce7f
	Example file location	C:\Windows\System32\drivers\

Filename mup.sys

System Windows 8.1

File size 54624 bytes

Date 2013-08-22

Download

File details
	MD5	6cd6189dfa649eebfcbe81cb30030355
	SHA1	d1bad7f52e6e08d3d8aa72c43fbed8eea72a0962
	SHA256	7f50dd0acdfc2afff1fa8ba5065b7b232c491d7ae7e67ae833bb02105ab7af77
	CRC32	075e14ca
	Example file location	C:\Windows\System32\drivers\

Filename mup.sys

System Windows 8

File size 57584 bytes

Date 2012-07-26

Download

File details
	MD5	6779b2a319a563c68b56de8491e9ea76
	SHA1	ad3aa688a4dc7bfff1f5f05e02ec7e5395c30982
	SHA256	dfd78a3931014668e88274dfcdcb08713fd5e5dee14f9af16bcaca45604fb5c8
	CRC32	be39ac6d
	Example file location	1: C:\Windows\System32\drivers\

Filename mup.sys

System Windows 7

File size 60496 bytes

Date 2009-07-14

Download

File details
	MD5	f9a18612fd3526fe473c1bda678d61c8
	SHA1	f445fc53763ba397a0e0e740181cef6ef3c5cc00
	SHA256	32f7975b5baa447917f832d9e3499b4b6d3e90d73f478375d0b70b36c524693a
	CRC32	b09065f4
	Example file location	C:\Windows\System32\drivers\

Filename mup.sys

System Windows Vista

File size 59880 bytes

Date 2009-04-11

Download

File details
	MD5	0cc49f78d8aca0877d885f149084e543
	SHA1	205737ae94a7fd999f0fbd7359d66dab33f88d47
	SHA256	984ddcb52f0dfc1b26c6504fe500e8d9c2ca7f79ed34608ae9866a0915b8ba67
	CRC32	b241c1fa
	Example file location	C:\Windows\System32\drivers\

Filename mup.sys

System Windows XP

File size 105344 bytes

Date 2008-04-14

Download

File details
	MD5	2f625d11385b1a94360bfc70aaefdee1
	SHA1	19cf12c5e5c1a009b549ea3f3b34a7bbd076802c
	SHA256	23e4974120233cf1a7bee48977706a0a55418699379d1450502abeb24191ac80
	CRC32	198bb2a7
	Example file location	---