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sysmain.dll - How to Fix? Download Now

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

sysmain.dll file Superfetch Service Host. 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 sysmain.dll related errors on your device. You can also download sysmain.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista

File info

General information
Filename sysmain.dll
File extension DLL
Description Superfetch Service Host
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.)
sysmain.dll

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

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

sysmain.dll

Error

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

OK

Problems related to sysmain.dll 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 sysmain.dll 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.

sysmain.dll 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

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with sysmain.dll 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.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to sysmain.dll file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. 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 sysmain.dll 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

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 sysmain.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the sysmain.dll file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the sysmain.dll file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the sysmain.dll 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 sysmain.dll file

The last solution is to manually download and replace sysmain.dll 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 sysmain.dll file.

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows Vista: C:\Windows\System32\

If the steps did not solve your sysmain.dll 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 sysmain.dll
System Windows 10
File size 786944 bytes
Date 2017-03-18
File details
MD5 048a65874bd9c7ac7ff6fbc9477a4933
SHA1 36f7be4aa29238dc6d171925a6b2d972ee0c8cbd
SHA256 1f700fed1927b7a6f3595c45e07900076cd99d24bc2c76005d343df0a8cea376
CRC32 3b4037d0
Example file location C:\Windows\System32\
Filename sysmain.dll
System Windows 8.1
File size 909824 bytes
Date 2014-11-21
File details
MD5 fdec8eb182dda9f0bdf13b4896cc46e3
SHA1 15751a52fe2dab5eda926cfc9e8cf760442b0555
SHA256 1a8ba2ca6115dc64c360183dc4c58fc72a6255de2a6b1d3a86b93dc6fa8874e4
CRC32 846d193e
Example file location C:\Windows\System32\
Filename sysmain.dll
System Windows 8
File size 1050624 bytes
Date 2012-07-26
File details
MD5 72effcdaafdb8fb568a56b02d5703b76
SHA1 8ee5e27eef233946d7b1bdfe258737ba471519f3
SHA256 46a8ca3452b0e16dc50c44742c28c7af470a08f809f3e1c5371827439eaaf9a1
CRC32 7eca9e68
Example file location 1: C:\Windows\System32\
Filename sysmain.dll
System Windows 7
File size 1743360 bytes
Date 2010-11-21
File details
MD5 bf9ccc0bf39b418c8d0ae8b05cf95b7d
SHA1 42fb0b19bbe407ad76abf6ff47508c45accbb711
SHA256 3c13217548be61f2bdb8bd41f77345cdda1f97bf0ae17241c335b9807eb3dbb8
CRC32 ac359cfc
Example file location C:\Windows\System32\
Filename sysmain.dll
System Windows Vista
File size 886784 bytes
Date 2009-04-11
File details
MD5 92d7a8b0f87b036f17d25885937897a6
SHA1 86695a263e6756761c530569f042c8973a6c4dcd
SHA256 6759bab11e5fbb143be13df1611ae5d41d379df423d881e92e910df6a37cba85
CRC32 53f775e2
Example file location C:\Windows\System32\