Troubleshoot sdstor.sys Errors and Download File

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

sdstor.sys file SD Storage Class 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 sdstor.sys related errors on your device. You can also download sdstor.sys file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8

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 sdstor.sys

4.1 List of sdstor.sys file versions

File info

General information
Filename	sdstor.sys
File extension	SYS
Description	SD Storage Class Driver

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 sdstor.sys file related problems

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

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

sdstor.sys

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

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

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

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

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

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

Windows 10: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8: 1: C:\Windows\System32\drivers\

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

System Windows 10

File size 74144 bytes

Date 2017-03-18

Download

File details
	MD5	7898d19d43a74f7f7f13e02f0064f784
	SHA1	f87c161ebf3bb9b4827114307134c29dc808b8d8
	SHA256	888a57b2703a0fe2ffb583161121bb032adc385372207f3a4683335d456f5c66
	CRC32	cfccc655
	Example file location	C:\Windows\System32\drivers\

Filename sdstor.sys

System Windows 8.1

File size 64344 bytes

Date 2014-11-21

Download

File details
	MD5	6a90c0c56cabeaa19779434ba6a9875b
	SHA1	fefad1d9a81705b0ab716e54825e97f0f523c570
	SHA256	42ea31f112d555f47d02d85922de4c8415882fc2fb6cff408d3dd390e6a1eb08
	CRC32	29c54d42
	Example file location	C:\Windows\System32\drivers\

Filename sdstor.sys

System Windows 8

File size 46832 bytes

Date 2012-07-26

Download

File details
	MD5	bcae716c7a79cce1012bf6bf910d31a3
	SHA1	a823c70426fa755607417af19730212362d99db0
	SHA256	16be6a5763812ce18cf149266a2fa235c2809677da787e1812ab12093a7a27db
	CRC32	6b1d5297
	Example file location	1: C:\Windows\System32\drivers\