How to Troubleshoot Winscomrssv.Dll Error At Startup on Windows Computers

  • If you get the message “RunDLL.Dll.
  • A certain module cannot be found”, it means that your computer is infected with a type of malware known as a Trojan horse.
  • The problem usually occurs with programs that are forced to run with Windows as startup programs.

Updated February 2024This tool will stop these errors and fix common problems: Get it at this link
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There Was A Problem Starting Startupchecklibrary Dll

You may also encounter this error if your system’s security product has quarantined the StartUpCheckLibrary.dll file, as well as if the Windows System files were corrupted during installation.

Startup Check Library Dll

In Microsoft Windows Operating System (, Startup Check Library DLL processes are known as Startup Check Library.

A common startup error in Windows is Winscomrssrv dll. This dll is often displayed as a pop-up message from malware. It is also known that malware can disguise itself as a harmless Microsoft dll file to harm user systems. However, there is a legit Microsoft dll file as well.

This error message window may appear on your Windows computer when you log in:

Greetings, I’m having trouble with a file, winscomrssrv.dll, which I believe is malware. I tried installing autoruns, but it couldn’t find the aforementioned file, so I thought it might be from that. Could you help? P.S. I think it’s because of Windows 11, but I’m not sure if that’s why.

I have a pop-up titled “RunDLL” that appears every time I boot my Windows 10 laptop and it says “winscomrssrv.dll was not able to start.” I tried restarting, but that didn’t solve my problem.

In the Windows Media Player, Winscomrssrv.dll is a DLL file used to play videos. You can fix Winscomrssrv.dll by uninstalling and reinstalling Windows Media Player. You can also repair or update the Windows Media Player if it’s not functioning correctly.

A Trojan horse is a type of malware that can infect your computer with the message RunDLL error. A certain module cannot be found when you run winscomrssv.dll.

Installing Autoruns for Windows is a simple way to fix Winscomrssv.Dll errors. Following these simple steps, you will be able to do so: Download Autoruns for Windows from its official website, and then head over to the folder where you downloaded the zip file and try extracting the zip file.

Millions of computer infections have emerged over time, some serious, some merely annoying, but all carrying the same aim of causing harm to the infected computer.

What are the reasons for the Winscomrssv.Dll error on startup?

  • As a result of forced programs being run as startup programs, this problem usually occurs.
  • You should remove this link from the startup process if this DLL file is no longer needed.

How to remove the Winscomrssv.Dll error at startup?

Updated: February 2024

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Install and activate Microsoft Defender

  1. Then choose “Settings” from the “Start” menu.
  2. Virus and Threat Protection can be accessed by clicking on “Security Update”, followed by “Windows Security”.
  3. You will need to enable Cloud Protection and Automatic Sample Delivery under Manage Settings.
  4. The Defender app should also be updated. Select Check for Updates under Virus and Threat Protection.

Run the Windows update

  1. Start – Settings – Windows Update to check if Windows is updated.
  2. Manually installing security updates is also an option.

Launch an SFC scan

  1. Start a new session of CMD by typing it in the search bar after rebooting your computer.
  2. Select Run as administrator from the right-click menu when you are in Command Prompt.
  3. You will then see a pop-up window where you should type /scannow.
  4. You need to wait until the scan is complete.

Utilize Windows Defender offline

  1. To access Settings, select Start.
  2. Virus and Threat Protection can be accessed by clicking on “Security Update,” then clicking on “Windows Security.”
  3. Then select Offline Scan under Current Threat, then Scan Now under Scan.

RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

winscomrssrv.dll is the remnants of malware that has already been removed from your computer by security software. A DLL file is a library that is no longer recognized by Windows because it is no longer referenced.

This problem usually occurs with programs that are forced to run with Windows as startup programs. It is also possible that this DLL file is no longer needed, but there is a link to this DLL file at startup and you need to remove this link to get rid of this error.

  1. Activate MS Defender.
  2. Run Windows update.
  3. Run an SFC scan.
  4. Use Windows Defender in offline mode.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.