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Performance error

Anonymous
2025-02-13T09:57:29+00:00

The Open procedure for service ".NETFramework" in DLL "C:\WINDOWS\system32\mscoree.dll" failed with error code The system cannot find the file specified.. Performance data for this service will not be available.

Windows for home | Windows 10 | Performance and system failures

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2025-02-14T08:19:24+00:00

    Hello Default_2024781 and welcome to the Microsoft Community!

    Thank you for your feedback, this error indicates that an attempt to load the performance counters associated with the .NET Framework has failed, and the reason for the failure is that the system was unable to locate the dynamic link library (mscoree.dll) or related files, rendering the performance data unavailable.

    You can try the following methods to see if they solve your problem

    Method 1: Check for the existence of mscoree.dll file

    mscoree.dll is one of the core files of the .NET Framework and is usually located in the C:\Windows\System32\ directory. If the file is missing or damaged, the system may not be able to load it correctly.

      1. Open File Explorer and navigate to C:\Windows\System32\. 

  2. Search for the file mscoree.dll and verify that it exists:

        If the file is not in the directory, it is missing.

        If it is present but corrupted, you may need to repair the system files (see Method 4 for details).

  3. Also check for the file in the following directory (these are the 32-bit and 64-bit file libraries): C:\Windows\SysWOW64\ (for 32-bit applications).

    Method 2: Repair .NET Framework Installation

    NET Framework may be corrupt or not properly installed, which is the core reason why mscoree.dll fails to load. Try the following steps to repair or reinstall:

      A) Enabling and Repairing .

     1. Press Win + S and search for Enable or Disable Windows Features. 

     2. In the pop-up window, make sure the following options are checked:

        NET Framework 3.5 (including .NET 2.0 and 3.0).

        NET Framework 4.x (Advanced Services).

     3. If unchecked or grayed out, check the box, click OK and wait for Windows to add the component.

 B) Using the .NET Framework Repair Tool

    Microsoft provides an official tool for fixing common problems with the :

         1. Download Microsoft's :[Troubleshoot blocked .NET Framework installations and uninstallations - .NET Framework | Microsoft Learn](https://learn.microsoft.com/en-us/dotnet/framework/install/troubleshoot-blocked-installations-and-uninstallations "learn.microsoft.com")

     2. Run the tool and follow the prompts to repair the .

     3. Reboot the system and check if the problem is solved.

 C) Manually reinstall .

    If the repair does not work, you can try to reinstall the .NET Framework manually:

         1. Open Microsoft's .NET Framework download page and download the latest version:

     2. [Download .NET Framework | Free official downloads](https://dotnet.microsoft.com/en-us/download/dotnet-framework "dotnet.microsoft.com")

     3. Run the installation program and follow the prompts to complete the installation.

     4. Check if the error still exists after the system reboots.

    Method 3: Check and repair the registry

    NET Framework performance counter profiles are usually stored in the registry. If a registry entry is accidentally deleted or corrupted, it can cause performance errors.

      1. Press Win + R and type regedit to open the registry editor. 

  2. Navigate to the following path:           HKEY\_LOCAL\_MACHINE\SYSTEM\CurrentControlSet\Services\.  

  3. Check if the Performance subsection exists. If it does not exist, either export the corresponding registry entry from another normal computer and import it, or reinstall the .

  4. Be careful when editing, and make a backup of the entire registry before modifying it:

  5. Click File > Export to save a copy of the current registry.

    Disclaimer: Modifying the registry or workgroups is usually intended for advanced users, administrators, and IT professionals, and it can help to fix some problems, however, improper registry modifications can cause serious problems. Therefore, please make sure to follow the steps below strictly. For further protection, make a backup of the registry before modifying it. For more information on how to backup and restore the registry ref:https://support.microsoft.com/en-us/topic/how-to-back-up-and-restore-the-registry-in-windows-855140ad-e318-2a13-2829-d428a2ab0692

    We look forward to hearing from you again!

    Kirito|Microsoft Community Support Specialist

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