What is error# 1722?

What is error# 1722?

Error 1722 is a Windows Installer error code that indicates that the installation process has failed. The error occurs because of a custom action that could not run on Windows Vista and Windows Server 2008.

How do I fix Fatal error during installation 0x80070643?

0x80070643 – Fatal error during installation.

  1. Solution: Try one or more of the below steps:
  2. Microsoft Install/Uninstall Tool. Use the Microsoft Program Install and Uninstall troubleshooter to troubleshoot and resolve the associated installation issue.
  3. Install as Admin.
  4. Change TEMP folder location.

What is code 0x80070643?

I understand that you are getting error code 0x80070643 while you try to install Windows Updates. This error occurs if . Net Framework is corrupt. To fix the issue, please try to run the . Net Framework repair tool and check if that helps.

What is 0x80070643 fatal error?

The 0x80070643 update error is associated with Windows Defender Antivirus on your Windows computer. If Windows Update has failed to update Windows Defender and shows you this error, you can try fixing it by updating the antivirus on your own.

What causes 0x80070643?

The error 0x80070643 message is usually the result of system settings that were configured incorrectly, a malware or virus infection, a driver malfunction, corrupted or missing system files, or old versions of programs that weren’t removed correctly when a new version was downloaded.

How do I repair .NET installation?


  1. Close all running software applications.
  2. Go to Windows Start Menu -> Control Panel -> Add or Remove Programs or Program and Features.
  3. Select Microsoft .
  4. Click Change/Uninstall, Remove or Repair.
  5. Select the Repair option, click Next.
  6. The wizard will perform a repair on the .
  7. It is suggested to restart the Computer.

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