How to fix “parser returned error 0xC00CE556” on Windows 10?

by Ugnius Kiguolis - -


Issue: How to fix “parser returned error 0xC00CE556” on Windows 10?

Hi everyone. After installing Windows 10 I receive the NET Parsing Error 0xC00CE556 whenever I try to run GoPro Studio. I’ve checked for Windows Updates, but the Windows Update service got stuck at 40%. Rebooted the machine and checked for updates again. This time everything worked and all available updates have been successfully installed. Besides, I did a scan with anti-malware, which revealed no threats. What could I do to fix Error 0xC00CE556 on Windows 10?

Solved Answer


Error Code 0xC00CE556 is yet another Windows 10 specific issue, which have been harassing computer users for a long time. While it has been gone for some time making us think that Microsoft has fixed the bug with one of the updates, it turned out recently that people keep getting NET Parsing Error 0xC00CE556 under various circumstances. Sometimes the system throws the “Parser returned error 0xC00CE556” notification when trying to install or launch a particular application. Nevertheless, the vast majority of Windows 10 users reported this bug check to be delivered right after the system is booted. The truth is that the problem plagues those PC users who have recently upgraded Windows OS from earlier versions to Windows 10. The Parser returned error 0xC00CE556 bug may be fostered by a variety of factors, including damaged system files/registry entries, malware, software crash, and so on. BUT, taking into account the content of the error message itself, it gets clearer that the culprit is most probably related to the .NET Framework software or rather .NET Framework-related machine.config file.

Error parsing
parser returned error 0xC00CE556.

According to specialists, the system cannot process the machine.config located in the C:\\Windows\Microsoft.Net\Framework\v2.0.50727\Config\ directory due to the fact that the file has been damaged. Thus, you should try the following method to fix error 0xC00CE556 permanently.

How to fix “parser returned error 0xC00CE556” on Windows 10?

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Since we have already clarified the most probably cause of the error 0xC00CE556, which is the corrupted machine.config file, the reasonable solution would be to replace the corrupted file with the default one. For this purpose, you may try to run the system scan with Reimage. This tool focuses on system’s optimization by fixing damaged registry entries, system files, as well as removal of file leftovers, malware, and similar tasks. It has an inbuilt database of Windows system files, so it may detect the corrupted machine.config file automatically and replace it. If, however, the software did not help, the you should replace the file manually. This can be done by following these steps:

  1. Click Win key + R.
  2. Type C:\Windows\Microsoft.NET\Framework\v2.0.50727/config in the run dialogue box and press Enter.
  3. Locate the machine.config.default file and copy it to another location (e.g. Desktop).
  4. If the UAC appears, click OK or Agree to proceed.
  5. Rename it to machine.config.
  6. The copy the file and place it in the C:\\Windows\Microsoft.Net\Framework\v2.0.50727\Config\ directory.
  7. Reboot the system.

If, unfortunately, this method did not work, it might be that you need to perform a clean install of Windows 10.

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About the author

Ugnius Kiguolis
Ugnius Kiguolis - The problem solver

Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.

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