Download stcusb.sys to Fix Errors

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

stcusb.sys file SCM USB Smart Card Reader. 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 stcusb.sys related errors on your device. You can also download stcusb.sys file compatible with Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 7, Windows Vista, Windows Vista

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 stcusb.sys

4.1 List of stcusb.sys file versions

File info

General information
Filename	stcusb.sys
File extension	SYS
Description	SCM USB Smart Card Reader

Software
Program	Microsoft® Windows® Operating System
Author	SCM Microsystems, Inc.

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	Copyright (C) SCM Microsystems, Inc. 1998
Character set	Unicode
Language cod	English (U.S.)

Most common stcusb.sys file related problems

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

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

stcusb.sys

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

Problems related to stcusb.sys 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 stcusb.sys 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 stcusb.sys errors in just few steps?

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

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

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

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

Windows 7: C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_amd64_neutral_6fb75ea318f84fe5\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_2023d8b5\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_2023d8b5\

If the steps did not solve your stcusb.sys 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 stcusb.sys

System Windows 7

File size 26112 bytes

Date 2009-06-10

Download

File details
	MD5	9e3e9e219a9cd617cdb541841997c3d8
	SHA1	c70f52f09272e5b2d1cb67fda38c38d75c5dd5b1
	SHA256	ae023423647918bfb2f8b0762016a36250188b04669103292f65b27a9831129c
	CRC32	f34d4191
	Example file location	C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_amd64_neutral_6fb75ea318f84fe5\

Filename stcusb.sys

System Windows Vista

File size 26624 bytes

Date -0001-11-30

Download

File details
	MD5	ab946e5d929d6ba5bf33eb7de30f9991
	SHA1	a4c3ddca7339b9b98242125f215b4bfa13131291
	SHA256	c011e3bd428fba2e698d55361d6b0551bdf1cb29f4881d0084c3cc272758d2e2
	CRC32	3ad7816b
	Example file location	C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_2023d8b5\

Filename stcusb.sys

System Windows Vista

File size 26624 bytes

Date 2006-11-02

Download

File details
	MD5	ee52dbee71020e195454cc3a5fd97eb8
	SHA1	dbef1c67163532e700918b64beef98b9ff34cdba
	SHA256	4fce14f10ba63e5a8f78635e0e836e48285c268b5a9a6abd2b44e762cfa5de89
	CRC32	bb7c574a
	Example file location	C:\Windows\System32\DriverStore\FileRepository\smartcrd.inf_2023d8b5\