How To Resolve The DistributedCOM Error In Windows Operating System

The DistributedCOM error, specifically Event ID 10016, is a common issue in Windows that can be perplexing but is often harmless. However, for users who prefer a clean Event Viewer, fixing this error can be beneficial.

What is the DistributedCOM Error?

The DistributedCOM error, also known as DCOM, occurs when an application or service attempts to access the Distributed Component Object Model without the necessary permissions. This error is typically flagged in the Event Viewer with Event ID 10016 and includes details such as the APPID and CLSID, which are unique identifiers for the application causing the error.

Understanding the Error

Event ID 10016 Details

• Permission Issues: The primary reason for this error is that the application or service does not have the required permissions to access the DCOM server.
• Background Operations: These errors often occur in the background and do not affect the user's experience unless they are actively trying to connect to a remote server.

Methods to Fix the DistributedCOM Error 10016

Method 1: Edit Windows Registry

Editing the Windows registry can resolve the issue by adjusting the permissions for DCOM access. However, it is crucial to back up the registry before making any changes.

1. Backup the Registry:

   • Press Windows + Q and type registry.
   • Choose the best match and navigate to File > Export.
   • Select the location and name for the backup file. You can also select All in the Export range section to back up all registry keys.

2. Delete Specific Registry Keys:

   • Press Windows + R to open the Run dialog, type regedit, and press Enter.
   • In the Registry Editor, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole.
   • Delete the following keys: DefaultAccessPermission, DefaultLaunchPermission, MachineAccessRestriction, and MachineLaunchRestriction.
   • Close the Registry Editor and restart your computer.

Method 2: Turn On DistributedCOM Permissions for Specific Errors

If deleting registry keys does not resolve the issue, you can enable DCOM permissions for the specific application causing the error.

1. Identify the Error in Event Viewer:

   • Open Event Viewer, navigate to Windows Logs > System, and find the latest DCOM error.
   • Double-click the error to view details, including the Class ID (CLSID) and Application ID (APPID).

2. Edit Class ID Permissions:

   • Open the Registry Editor and navigate to HKEY_CLASSES_ROOT\CLSID\{your Class ID goes here}.
   • Right-click the Class ID, select Permissions, then Advanced.
   • Edit the Basic Permissions to allow Full Control for the Administrators group.
   • Apply and OK the changes, then reboot your computer.

Method 3: Hide DistributedCOM 10016 Error Entries from Event Viewer

If you prefer not to edit the registry, you can hide these error entries from the Event Viewer.

1. Filter Event Viewer:
   • Open Event Viewer and navigate to the log where the DCOM errors are recorded.
   • Use the filter options to exclude Event ID 10016 from the view. This does not resolve the underlying issue but keeps the Event Viewer clean.

Additional Troubleshooting Steps

Install Windows Updates

Ensure your system is up to date, as outdated versions can sometimes cause permission errors and communication issues with applications.

Temporarily Disable Antivirus

Sometimes, antivirus software can interfere with DCOM operations. Temporarily disabling your antivirus may help in identifying if it is the cause of the issue.

Verify COM Access Permissions

Check the permissions for the COM service to ensure that the necessary access rights are granted. This can be done through the Component Services console.

Frequently Asked Questions

Are DistributedCOM Errors Serious?

In most cases, DistributedCOM errors, especially Event ID 10016, are not serious and do not affect system functionality. They can be safely ignored unless they are causing specific connectivity issues.

Why Do These Errors Occur?

These errors occur when an application or service lacks the necessary permissions to access the DCOM server. They are often background operations and do not impact user experience unless there is an active attempt to connect to a remote server.

By following these steps, you can effectively manage and resolve the DistributedCOM error 10016 in Windows, ensuring a cleaner Event Viewer and potentially resolving any underlying issues related to DCOM permissions.