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StartupCheckLibrary.ddl and winscomrssrv.ddl could not be found after most recent update

Anonymous
2021-05-05T00:13:15+00:00

I completed a Windows update yesterday and now I'm getting these two error messages every time I start my computer.

Looking at my upgrade history, it started after either "Security update for Microsoft Windows (KB5001330)" or "Update for Microsoft Windows (KB4601050)," both were installed in the past 24 hours. 

Not sure what this impacting exactly, but I also have no wallpaper or image associated with my Microsoft account. 

I've tried every single workaround here https://www.pcerror-fix.com/fix-startupchecklibrarydll-missing-not-found-error#:~:text=Some%20of%20the%20most%20common,latest%20Windows%20updates%20and%20others including using Advanced System Repair Pro to clean and "repair" everything - no dice, and running DISM commands as advised here https://answers.microsoft.com/en-us/windows/forum/windows_10-update/startupchecklibrarydll-missing/821232e5-fea4-4c22-97ca-3875777b2167. 

I cannot uninstall the security update highlighted in the screenshot. If I double clock the update from 5/4/2021 I get the uninstall option, but absolutely nothing on the 5/3/2021 one. 

Please help, this is driving me insane :(

Windows for home | Windows 10 | Windows update

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  1. _AW_ 67,431 Reputation points Volunteer Moderator
    2021-05-05T01:38:25+00:00

    Those errors are caused by the autorun entries leftover after those two malware files were removed.

    To remove the autorun entries, download Autoruns:

    https://live.sysinternals.com/Autoruns.exe

    To remove the winscomrssrv.dll error:

    • Run Autoruns.exe as administrator.
    • In the Filterbox up top Enter: srvhost
    • You should see a Task Scheduler entry:\Microsoft\Windows\WDI\SrvHost
    • Right click on this entry and Delete.

    If you can't find the reference to StartupCheckLibrary.dll in autoruns, provide an autoruns log and I'll inspect it for you:

    To get a log file, run Autoruns

    When it has finished scanning, go to File > Save and save the log.arn file, then zip the log and share it via OneDrive or any cloud file sharing service. Post the link to the log file.

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  2. _AW_ 67,431 Reputation points Volunteer Moderator
    2021-05-05T03:20:52+00:00

    To remove StartupCheckLibrary.dll error:

    • Run Autoruns.exe as administrator.
    • In the Filterbox up top Enter: startupc
    • You should see a Task Scheduler entry:\Microsoft\Windows\Application Experience\StartupCheckLibrary
    • Right click on this entry and Delete.

    Do any other problems remain?

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  3. Anonymous
    2021-05-05T02:37:17+00:00

    Hi _AW_,

    Thank you, that removed the winscomrssrv error! StartupCheckLibrary isn't in autoruns, though. 

    Here is the log, as requested: https://drive.google.com/file/d/12i2glk9UwV2TSUO7-GbWPV25AJsNv9QQ/view?usp=sharing

    Thanks again for your help!

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  4. Anonymous
    2021-05-05T02:30:46+00:00

    I followed your instructions to create a new profile, and the issue doesn't exist with that profile. I also followed _AW_'s instructions to get rid of the winscomrssrv.ddl error, and that was successful. Now the only problem is the StartupCheckLibrary.ddl issue. 

    I tried doing a system restore, but the only option is for today (5/4) before the system repair. The problem was there before the system repair, though. Did me running the fix delete my earlier restores? :'(

    Image

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  5. Anonymous
    2021-05-05T01:57:07+00:00

    Hi Hyrudes -

    I'm Jerico T., one of the Independent Advisor and a fellow Windows 10 user like you. I understand that you're having some issues right now, let us sort things out.

    Please try to perform the methods below and check if any of the resolves fixes the issue.

    Method 1: Create a new user profile

    • We will try to create new user profile to check if the issue happens on all windows users on your computer or just isolated on the current profile that you're using.
    1. Open the command prompt with elevated access (Administrator Access)
    2. Type the below command and hit enter every after command.

    net user "account name" /add

    (change the "account name" to any name that you preferred)

    net localgroup administrators "account name" /add

    (change the "account name" with the name that you put in the first command)

    1. Close the command prompt and switch to the new user.

    Check if the same issue occurs on the new user profile.

    Method 2: System Restore

    • System restore is where it will take your computer settings back to an earlier point in time where everything is working fine.
    1. Open the run box by pressing Windows Key + R and type rstrui.exe then press enter.
    2. System restore windows will open. Normally it will suggest a restore point(Sometimes it doesn't), if it does, select the 2nd option to select more restore points.
    3. Select your desired restore point date and time.
    4. Once selected, hit next and finish.

    Windows will restart itself to start system restore. System restore might take some time to complete and it is very important that system restore must not be interrupted during restore process as it might damaged the operating system. System restore will take at least 20 minutes or more depending on the content of the computer and the changes on the settings that was done prior to the date selected. System restore will also removed application , updates and drivers installed prior to the date selected.

    DISCLAIMER:

    System Restore is a recovery tool for Windows that allows you to reverse certain kinds of changes made to the operating system. System Restore is used to return important Windows files and settings—like drivers, registry keys, system files, installed programs, and more—back to previous versions and settings. Being said all applications and changes made prior to the date selected will be removed and needs to be re-installed if its needed.

    Feel free to reach back if you need any further assistance.

    Hope this help. Have a good day.

    Thank you.

    Jerico T.

    Independent Advisor

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