Repair Scmstcs.sys.mui Issues (How to Download and Fix)

Last Updated: 11/27/2023
[Time to Read: ~3-5 minutes]

The development of Microsoft® Windows® Operating System by Microsoft prompted the latest creation of scmstcs.sys.mui. It is also known as a PC/SC Driver for STC Serial Reader file (file extension MUI), which is classified as a type of Win64 DLL (Driver) file.

The release of scmstcs.sys.mui introduced for Windows was on 11/08/2006 in Windows Vista. This is not only most recent release from Microsoft, but it's the only version known in existence.

This article discusses complete file details, MUI file troubleshooting instructions for problems with scmstcs.sys.mui, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information
File Name: scmstcs.sys.mui
File Extension: MUI file extension
Description: PC/SC Driver for STC Serial Reader
Object File Type: Driver
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Microsoft Corporation
Software Program: Microsoft® Windows® Operating System
Legal Copyright: Copyright (c) SCM Microsystems, Inc.1998
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x0000


What are scmstcs.sys.mui Error Messages?


Dynamic Link Library scmstcs.sys.mui Errors

scmstcs.sys.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like scmstcs.sys.mui, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like sapisvr.exe - to follow. These files were created so that multiple programs (eg. Windows) could share the same scmstcs.sys.mui file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared MUI file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when scmstcs.sys.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common scmstcs.sys.mui errors include:

Your scmstcs.sys.mui file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows), or deleted by a malware infection. Furthermore, scmstcs.sys.mui file corruption could be caused from a power outage when loading Windows, system crash while loading scmstcs.sys.mui, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix scmstcs.sys.mui Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your scmstcs.sys.mui issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the scmstcs.sys.mui error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing scmstcs.sys.mui file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt scmstcs.sys.mui files (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "cmd" but DO NOT PRESS "ENTER".
  3. Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
  4. You'll be prompted with a permission dialog box.
  5. In the box, click "YES".
  6. You should have a black screen with a blinking cursor.
  7. In that black screen, type "sfc /scannow" and hit "ENTER".
  8. SFC will begin scanning for scmstcs.sys.mui issues and any other system file problems.
  9. Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many scmstcs.sys.mui error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the scmstcs.sys.mui error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



If Those Steps Fail: Download and Replace Your scmstcs.sys.mui File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate scmstcs.sys.mui file version. We maintain a comprehensive database of 100% malware-free scmstcs.sys.mui files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download scmstcs.sys.mui Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy the file into the appropriate directory for your Windows version:

  4. Windows Vista: C:\Windows\System32\drivers\en-US\
  5. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows Vista.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve scmstcs.sys.mui problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.



Download scmstcs.sys.mui Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying scmstcs.sys.mui to your appropriate Windows system directory. Microsoft typically does not release Windows MUI files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing scmstcs.sys.mui and all other MUI files for Windows. An incorrectly installed MUI file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows Vista


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MUI Files Related to scmstcs.sys.mui

File Name Description Software Program (Version) File Size (bytes) File Location
sk-SK_BitLockerToGo.ex... BitLocker To Go Reader Microsoft® Windows® Operating System (6.3.9600.16384) 8704 C:\Windows\Logs\CBS\
CNBBR140.DLL.mui Canon Inkjet Printer Driver Canon Inkjet Printer Driver (1.00.2.82) 2048 C:\Users\Tester\AppData\Local\Packages\Microsof...
duser.dll.mui Windows DirectUser Engine Microsoft® Windows® Operating System (6.2.9200.16384) 3072 C:\Windows\Panther\UnattendGC\
wdc.dll.mui Performance Monitor Microsoft® Windows® Operating System (6.2.9200.16384) 104960 C:\WINDOWS\Tasks\
diskpart.exe.mui Myriad User Instrument Windows 7 235008 C:\WINDOWS\Tasks\

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File Name Description Software Program (Version) File Size (bytes) File Location
OneX_v1.xsd XML Schema Definition Windows XP 5957 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Windows 8 6201 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Windows 10 6201 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Microsoft Office Access 2010 14 6201 C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLAN_policy_v1.xsd XML Schema Definition Windows 7 7405 C:\Windows\L2Schemas\


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