Windows

How to Fix DCOM Error 10016 on Windows 7, 8 and 10

Getting a DCOM error with an event ID 10016 means that a program tried to start the DCOM server with using the DCOM infrastructure, but the user doesn’t have necessary permissions to do so. This is a known error that remains from older Windows editions, but it isn’t actually solved when you upgrade to a newer version of the OS and is also seen in Windows 8 and 10.

You will receive this in a form of a system error, and you will also get a message which contains a CLSID and APPID. This error may be completely harmless, but seeing it and having to deal with it all the time can be annoying.

There is a solution that has been proven to work for a lot of users, and to do that you will need the CLSID and APPID from the error message, and you should follow the steps in the method below.

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Give the app causing the error sufficient permissions

The CLSID and APPID are unique to an app – and having them both can help you in identifying the app causing the issues. Even if you know which app is causing the problems, all you need to do is give it sufficient permissions so it doesn’t cause problems every time it needs them. The steps to do so are very simple.

  1. Press simultaneously the Windows and R keys on your keyboard, and type regedit in the Run Press Enter or click OK to open the Registry Editor.
  2. From the Registry Editor, expand the HKEY_CLASSES_ROOT folder, and the CLSID folder inside.
  3. Find the folder with the CLSID you received in the error message, then right-click it and select “permissions” and click on “Advanced“.
  4. Click At the top, you will see the owner – change it to Administrators group.
  5. At the bottom of the owner window, also select  Replace all child object permission entries. Click OK, and then select Yes to the Windows Security warning. Back in the main permissions window, click Add, enter Everyone and click OK. Again in the main permissions Window, select Everyone from the list of users in the top, and select Full Control from the Allow column in the bottom half. Click OK.
  6. Apply full control.
  7. Once you’re done, expand the HKEY_LOCAL_MACHINE Inside, expand these folders: Software, then Classes, then AppID.
  8. Go to the folder which has the same APPID you received in your error message. Right-click and choose permissions and select “Advanced“.
  9. Using steps 4 through 6, give the app sufficient permissions.
  10. Note that when you’re looking at the folders with the CLSID and APPID, you will see a registry key with the name of the service causing the issue.
  11. Press the Windows key, and either type Control Panel and open the result, or open the Control Panel from the Start menu, depending on which version of Windows you’re using.
  12. Switch to icons view at the top right, and open Administrative Tools.
  13. Open Component Services.
  14. Click Computer, followed by My Computer, and finally find the service that’s causing the issue, right-click it, and select properties.
  15. Click the Security tab. If permissions were properly set in the registry you should be able to select Customize on all three categories in this window (Launch and Activation Permissions, Access Permissions, and Configuration Permissions). If any of these items are grayed, repeat the previous steps for setting registry permissions to verify those settings.
  16. Once Customize has been selected on all three categories, select Edit on Launch and Activation Permissions If you receive a warning that one or more permissions entries attached has an unrecognized type, click Remove. This just means that permissions in the registry were set to a non-default value, which is necessary to complete the fix.
  17. In the new window look for System in the list of users at the top. If it does not exist click Add. Type System and click OK. Select System from the list of users in the window. In the bottom half of the window, place a check in the Allow column beside Local Launch and Local Activation. You may also see Local Access instead, just be sure there is a check for this item in the Allow column. Click OK. Repeat the steps for the other two items, Access Permissions and Configuration Permissions.
  18. Repeat steps [numbered] for other ClSID and AppID values listed in event logs.
  19. Rebooting after performing the steps above is required for the changes to take effect.

Even though this might seem like a long and exhausting way to solve the issue, it is actually the one that has been reported to work for a vast majority of the users having this problem. Follow it carefully step by step, and you will have the DCOM error gone in no time.

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Expert Tip

How to Fix DCOM Error 10016 on Windows 7, 8 and 10

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