Error 0xc0000020 in Windows: How to Fix It?

Error 0xc0000020 in Windows is a common issue that can occur when launching applications or even the system itself. This error often indicates problems related to corrupted files, system misconfigurations, or software incompatibility. Let’s explore the potential causes of this error and how you can resolve it effectively.

Possible Causes of Error 0xc0000020

The main reasons behind this error could be:

  • Corrupted Windows system files;
  • Outdated or incompatible software versions;
  • Incorrect system settings or configurations;
  • Virus or malware infections affecting system integrity;
  • Driver or hardware conflicts causing instability.

Solutions to Fix Error 0xc0000020

Here are several steps you can take to resolve the error:

1. Run the System File Checker (SFC) Tool

The System File Checker (SFC) scans for and repairs corrupted Windows system files:

sfc /scannow

Open Command Prompt as an administrator and run this command. Wait for the scan to complete, then restart your computer to check if the issue is resolved.

2. Update or Reinstall the Affected Program

If the error appears when launching a specific program, try updating it to the latest version or reinstalling it from the official website to ensure compatibility.

3. Install the Latest Windows Updates

Sometimes, updating Windows can fix issues caused by outdated system components. Go to Settings > Update & Security and check for updates, then install any available patches.

4. Perform a Full Malware Scan

Malware infections can corrupt system files and cause unexpected errors. Use Windows Defender or another antivirus tool to perform a comprehensive scan and remove any detected threats.

5. Use System Restore

If the error persists, try using System Restore to revert your computer to a point before the issue started. Go to Control Panel > Recovery > Open System Restore and follow the prompts.

6. Consider Reinstalling Windows

If none of the above methods resolve the issue, a clean installation of Windows might be necessary. Be sure to back up your important data before proceeding with a fresh install.