Troubleshoot ks.sys.mui Errors and Download File

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

ks.sys.mui file Kernel CSA Library. 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 ks.sys.mui related errors on your device. You can also download ks.sys.mui file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8

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 ks.sys.mui

4.1 List of ks.sys.mui file versions

File info

General information
Filename	ks.sys.mui
File extension	MUI
Description	Kernel CSA Library

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	Neutral

Most common ks.sys.mui file related problems

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

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

ks.sys.mui

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

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

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

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

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

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

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

System Windows 10

File size 2560 bytes

Date 2017-03-18

Download

File details
	MD5	e1496f5fb36c4c7dd5ef63b659d34c1a
	SHA1	3a6de8c3108c34a2d84671542e8bde937ce0af08
	SHA256	25f6e2927411f2973fb882ff16a6162f640b77b9d3e9a589c517a6a4cc206531
	CRC32	7f6f9e53
	Example file location	C:\Windows\System32\drivers\en-US\

Filename ks.sys.mui

System Windows 8.1

File size 2048 bytes

Date 2014-11-21

Download

File details
	MD5	89044cb6a2e99fcd6892cc6f95fa052e
	SHA1	95d92f5942ee8c7b1eaca21e7f255e6e526a0dca
	SHA256	16b4c1030a2e9f0492864a274faeea4beeb42735c2af36efd6befc87d62f21fb
	CRC32	f030c22b
	Example file location	C:\Windows\System32\drivers\en-US\

Filename ks.sys.mui

System Windows 8

File size 2048 bytes

Date 2012-07-26

Download

File details
	MD5	ea321d26b4ae55e7d6da9cc353f2a8b6
	SHA1	c6d9c1354c7a86a71a628ca3d8be61c09274c164
	SHA256	777e89d5132c74f5b51e452873a87fe10071eb37d8059debf1161935cbd7431a
	CRC32	24cc658a
	Example file location	1: C:\Windows\System32\drivers\en-US\