How to Repair irstusb.sys? Download Now

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

irstusb.sys file NDIS 5.0 USB Infra-Red Driver. 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 irstusb.sys related errors on your device. You can also download irstusb.sys file compatible with Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: 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 irstusb.sys

4.1 List of irstusb.sys file versions

File info

General information
Filename	irstusb.sys
File extension	SYS
Description	NDIS 5.0 USB Infra-Red Driver

Software
Program	SigmaTel STIr
Author	SigmaTel, Inc.

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	Copyright (C) SigmaTel, Inc. 2000
Character set	Unicode
Language cod	English (U.S.)

Most common irstusb.sys file related problems

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

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

irstusb.sys

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

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

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

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

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

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

Windows Vista: C:\Windows\System32\DriverStore\FileRepository\irstusb.inf_e49daf4b\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\irstusb.inf_e49daf4b\

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

System Windows Vista

File size 33792 bytes

Date 2008-01-21

Download

File details
	MD5	1a807a037503b285016e61100d04614a
	SHA1	a2808e6456ef977516ebbabea0941dc8199ae88f
	SHA256	8a9315356a43064611493bb523d6e909bfc67fda0b0da030e24239b8ac00a51b
	CRC32	bbbdd8bd
	Example file location	C:\Windows\System32\DriverStore\FileRepository\irstusb.inf_e49daf4b\

Filename irstusb.sys

System Windows Vista

File size 33536 bytes

Date -0001-11-30

Download

File details
	MD5	523aa0216d0af5e6de696f8f7affd9ee
	SHA1	c78fa407756d4a4c86ee9ca29d5cec9c2387346e
	SHA256	c7ed5a115b2ad07118f0397672347609c001251aceef66bf89000e811e1f7b15
	CRC32	15ddb933
	Example file location	C:\Windows\System32\DriverStore\FileRepository\irstusb.inf_e49daf4b\