Fix portcls.sys.mui Errors
Sometimes Windows system displays error messages regarding corrupted or missing portcls.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 portcls.sys.mui file can therefore effect in failed execution of the started process.
portcls.sys.mui file Port Class (Class Driver for Port/Miniport Devices). 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 portcls.sys.mui related errors on your device. You can also download portcls.sys.mui file compatible with Windows 8.1, Windows 8, Windows 7 devices which will (most probably) allow you to solve the problem.
Compatible with: Windows 8.1, Windows 8, Windows 7
Fix portcls.sys.mui errors
File info
| General information | |
|---|---|
| Filename | portcls.sys.mui |
| File extension | MUI |
| Description | Port Class (Class Driver for Port/Miniport Devices) |
| 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 (British) |
Most common portcls.sys.mui file related problems
There are various types of errors related to portcls.sys.mui file. portcls.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 portcls.sys.mui file. If you encounter one listed below (or similar), please consider the following suggestions.
- portcls.sys.mui is corrupted
- portcls.sys.mui cannot be located
- Runtime Error - portcls.sys.mui
- portcls.sys.mui file error
- portcls.sys.mui file cannot be loaded. Module was not found
- cannot register portcls.sys.mui file:
- portcls.sys.mui file could not be loaded
- portcls.sys.mui file doesn't exist
portcls.sys.mui
Application could not be started because portcls.sys.mui file is missing. Reinstall the application to solve the problem.
OKProblems related to portcls.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 portcls.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 portcls.sys.mui errors in just few steps?
portcls.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 portcls.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 portcls.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 portcls.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 portcls.sys.mui file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the portcls.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 portcls.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 portcls.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 portcls.sys.mui file
The last solution is to manually download and replace portcls.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 portcls.sys.mui file.
Go to the folder where the file should be located and paste the downloaded file. Below is the list of portcls.sys.mui file example directory paths.
- Windows 8.1: C:\Windows\System32\Drivers\en-GB\
- Windows 8: 1: C:\Windows\System32\Drivers\en-GB\
- Windows 7: C:\Windows\System32\drivers\en-US\
If the steps did not solve your portcls.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
| File details | ||
|---|---|---|
| MD5 | ec37329668e786b8327297767a27b23d | |
| SHA1 | ea34cf5e633db5ade43493f00bfdba3b2c1a7b6e | |
| SHA256 | 342b104576cf61016f60d83af51c26f0e2f0e9083c1c5362649adb4e651653b8 | |
| CRC32 | dda83e0b | |
| Example file location | C:\Windows\System32\Drivers\en-GB\ | |
| File details | ||
|---|---|---|
| MD5 | 2d0ba0db35d5c45ed5433de22a89ed3d | |
| SHA1 | 1b70b197810977b049f901647e99a228a6034f41 | |
| SHA256 | cd7080695b392b0757385b66d4f9cae40592e8f321f93ed2d4f1a757917e6918 | |
| CRC32 | fe252616 | |
| Example file location | 1: C:\Windows\System32\Drivers\en-GB\ | |
| File details | ||
|---|---|---|
| MD5 | fd3dc59e253f1588cfdc984a08d5ab06 | |
| SHA1 | f15823d5cf4c041f89ac7b974fb9da50fb930e7f | |
| SHA256 | 50947e955206e55d9ca43f7e6cb84ad7259b9a735dae8d5194289fff174dcc1d | |
| CRC32 | 0cf81965 | |
| Example file location | C:\Windows\System32\drivers\en-US\ | |