How to Repair perfos.dll.mui? Download Now

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

perfos.dll.mui file Windows System Performance Objects DLL. 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 perfos.dll.mui related errors on your device. You can also download perfos.dll.mui file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, 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 7, Windows Vista, Windows Vista

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Fix perfos.dll.mui errors

1 Information about perfos.dll.mui file
2 Errors related to perfos.dll.mui file
3 How to fix perfos.dll.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 perfos.dll.mui

4.1 List of perfos.dll.mui file versions

File info

General information
Filename	perfos.dll.mui
File extension	MUI
Description	Windows System Performance Objects DLL

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common perfos.dll.mui file related problems

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

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

perfos.dll.mui

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

Problems related to perfos.dll.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 perfos.dll.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 perfos.dll.mui errors in just few steps?

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

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

The last solution is to manually download and replace perfos.dll.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 perfos.dll.mui file.

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

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

If the steps did not solve your perfos.dll.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 perfos.dll.mui

System Windows 10

File size 8192 bytes

Date 2017-03-18

Download

File details
	MD5	aa9cb7eb70c53f1878c2aa7e1667978b
	SHA1	0b1626589238d10263d074e05fe548ab49e9eef4
	SHA256	9f4b72c32bb56f280d6200e57fbda26d38cf75c66e8f39c6973123e7450df86d
	CRC32	5e1109aa
	Example file location	C:\Windows\System32\en-US\

Filename perfos.dll.mui

System Windows 8.1

File size 7680 bytes

Date 2014-11-21

Download

File details
	MD5	6957f9ab50b3f87a626d5c3df010144e
	SHA1	46cabde5cc56f64402e0dfb92daa9635f42b53e4
	SHA256	e6040960e559cfa808dde2074391fa7df67ef43547faf30afe27987e4cbfc709
	CRC32	9769d99b
	Example file location	C:\Windows\System32\en-US\

Filename perfos.dll.mui

System Windows 8

File size 7680 bytes

Date 2012-07-26

Download

File details
	MD5	67f6254690e80bd7cc37c2884ae33e76
	SHA1	1bce81b3ea1a1359fef7d5fc60bc5a7eed06cb8a
	SHA256	f9a39033523ed4b247a7ed60bdcc137a500df5af26f28618a4484f69faf6c86e
	CRC32	9cdc75a9
	Example file location	1: C:\Windows\System32\en-US\

Filename perfos.dll.mui

System Windows 7

File size 7168 bytes

Date 2011-04-12

Download

File details
	MD5	172c7d59a1b47041c1f33fc9e75df037
	SHA1	ab43f9c8226109907808417749afa8f3c3ee83c9
	SHA256	1d88a12ee598e5cf0e72cb10322c55e0517989c2ab4c68366b73db4becc5b59f
	CRC32	f2158777
	Example file location	C:\Windows\System32\en-US\

Filename perfos.dll.mui

System Windows 7

File size 7168 bytes

Date -0001-11-30

Download

File details
	MD5	1a98243aff4b2d263c5f6a4d24b10f31
	SHA1	2d09e6f683237212b7de80e72a4d196be26d3f84
	SHA256	6e5c5c3393dc6b6e0bfc5f95a517530a6cc7bc1e38cfe383bb6de5b1fe830586
	CRC32	052d422a
	Example file location	C:\Windows\System32\en-US\

Filename perfos.dll.mui

System Windows Vista

File size 7680 bytes

Date -0001-11-30

Download

File details
	MD5	8a87345deb658cc62203b793bbd64899
	SHA1	8d88b3142bb92b9ab32dac25740a107391d41013
	SHA256	fe5a1b452c3681b1275110e7451928aab7b43d27179c8426fdd3688fc52d9a5e
	CRC32	73b0760d
	Example file location	---

Filename perfos.dll.mui

System Windows Vista

File size 7168 bytes

Date 2006-11-02

Download

File details
	MD5	8f59ff7b68dc514e31ee4ad0cd28b107
	SHA1	c4911e3a965565caa9425a7b9e6fcf16b683c3c2
	SHA256	2137802485669aa80f6f540eb1ec67d952a53d4a7da20a336ac86bd012c17330
	CRC32	4e6e31e5
	Example file location	---