How to fix error 0xC00CE556 returned by the .NET parser

When installing a new version of an application, Windows may display this error message " When parsing C:\\Windows\Microsoft.Net\Framework\v2.0.50727\Config\machine.config Parser returned error 0xC00CE556 Error". This problem also occurs when your system boots. No matter where you encounter this problem, the .NET Framework is the real culprit behind the scenes. There are some very simple fixes you can use to stop this error code from appearing again.

Fix 1 – Replace the corrupted file

You can easily replace the corrupted machine.config file from the original directory.

1. Press ⊞ Win keys and R keys to open the running terminal.

2. When you see the Run Terminal, just copy-paste this line and press Enter.

C:\Windows\Microsoft.Net\Framework\v2.0.50727\Config\

This should open the Config folder in the Framework directory.

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If you face any difficulty opening the Config folder, please follow these steps -

A. Open a running terminal.

Bay. After that, Paste this address and press Enter key to reach the desired location.

%windir%\Microsoft.NET\Framework\v2.0.50727\CONFIG\

]

2. When you reach the CONFIG folder, find the " machine.config.default " file.

3. Once you see the file, right-click it and tap the copy icon to copy the file.

4. Just go to the desktop and paste the file there.

5. Go back to the CONFIG folder again.

6. Now, find the “ machine.config” file from the file list.

7. Select the file and press the "Delete" key to delete the file.

8. Now, return to the desktop.

9. Just right-click on " machine.config.default " and click on the " rename " icon to rename it to " machine.config".

#10. If you notice any prompts, just click "Continue" to completely rename the file.

11. Now, just move this new "machine.config" file to the CONFIG directory. (Easy, copy and paste this file into the CONFIG folder).

After completing this operation, you should close File Explorer. Then, restart the system.

You will not see parsing error 0xC00CE556 on your system again.

Fix 2 – Clean boot the system

A clean boot should fix the system.

1. Press the Windows key and R key at the same time to open the running terminal.

2. Just write the UTR code and press Enter.

配置文件

3. Go to the "General" section.

4. Just select the "Selective Start" option.

5. Next, check these two options -

加载系统服务加载启动项

6. Under "Service ” section, you must check the “Hide all Microsoft services” option.

8. Next, check all third-party apps in the list.

9. Then, click on the “Disable All” option to disable all these services.

10. After disabling the application, access the "Startup" area.

11. Here, click "Open Task Manager" to open the Task Manager.

This will open the Task Manager screen.

13. Here are some applications that are set to start automatically at system startup. Just right-click on each app and click "Disable" to disable it.

Close the Task Manager window when finished.

13. Finally, click "Apply" and "Confirm" to save the changes.

14. If you receive a prompt to restart your system, click "Restart Now".

Let your computer start. After booting, test whether you see error code 0xC00CE556 on your system.
If your device is working fine in clean boot mode, then a recently installed app you have is causing this issue.

Uninstall this application from your system and you will not encounter Parser Returned Error 0xC00CE556 on your system.

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