Troubleshoot isapnp.sys.mui Errors and Download File

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

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

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

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Fix isapnp.sys.mui errors

1 Information about isapnp.sys.mui file
2 Errors related to isapnp.sys.mui file
3 How to fix isapnp.sys.mui related errors?

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

4 Download isapnp.sys.mui

4.1 List of isapnp.sys.mui file versions

File info

General information
Filename	isapnp.sys.mui
File extension	MUI
Description	PNP ISA Bus 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 isapnp.sys.mui file related problems

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

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

isapnp.sys.mui

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

Problems related to isapnp.sys.mui 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 isapnp.sys.mui 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 isapnp.sys.mui errors in just few steps?

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

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

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

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

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

If the steps did not solve your isapnp.sys.mui 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 isapnp.sys.mui

System Windows 10

File size 4096 bytes

Date 2017-03-18

Download

File details
	MD5	31ddf3197aa85ac5ef7b104193efe744
	SHA1	06f3549e6e4c35f1d72f5dcced1679d507bc8a14
	SHA256	89c1ca137de89eed65b8e049d7d314916078b01219557e4588967a8745b10c8c
	CRC32	f3a14669
	Example file location	C:\Windows\System32\drivers\en-US\

Filename isapnp.sys.mui

System Windows 8.1

File size 3584 bytes

Date 2014-11-21

Download

File details
	MD5	89f45d27d843bb126ce75506eecab27e
	SHA1	80377b9ce48e869c142e8385c1720e79bc9126af
	SHA256	9cfe6b059ddba1d6f5e747ac212b04eeea02a159b49205717e27ac0616778c8d
	CRC32	585bd6d7
	Example file location	C:\Windows\System32\drivers\en-US\

Filename isapnp.sys.mui

System Windows 8

File size 3584 bytes

Date 2012-07-26

Download

File details
	MD5	94c3092de860e826e79bb0c8ed401410
	SHA1	b5416f5cc6570ac5fbd008307090704d3078cc1b
	SHA256	ad87324a47ad5ce0fb7ec307b9977114e6948cf5f10a516399c7fc45e1b54324
	CRC32	520856a3
	Example file location	1: C:\Windows\System32\drivers\en-US\

Filename isapnp.sys.mui

System Windows 7

File size 3584 bytes

Date 2011-04-12

Download

File details
	MD5	095ee8818e7cfeefca144737d5ee7ec5
	SHA1	b8b42834a669ba02cdd5e5b721946aa8537438a0
	SHA256	b5e84f88f6bd783f85006fe04e94d12ba182ee0b0b02ae5caaabb4581a43208d
	CRC32	1fc811a3
	Example file location	C:\Windows\System32\drivers\en-US\

Filename isapnp.sys.mui

System Windows Vista

File size 3584 bytes

Date 2006-11-02

Download

File details
	MD5	bd7753634d5810fc82f86294bcc0481c
	SHA1	f5e44cf724db1f15e253426c6a1e6318f65167ea
	SHA256	b6eb99e6646a20b3024755fdb72de87a8b834b9e5d93a0705730db18838c8731
	CRC32	7b75c167
	Example file location	C:\Windows\System32\drivers\en-US\