How do I fix the 0x80070643 error?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

0x80070643 is an error code that indicates that a Windows Update installation has failed. This error code can happen for a variety of reasons, but typically it is because a required system file is missing or corrupt, or because an installation is already in progress. In some cases, 0x80070643 can also be caused by malware or a third-party software conflict.

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  • installation failed with error code: (0x80070643)
  • error code: (0x80070643)
  • windows error code 80070643
  • installation failed with error code: (0x80070643
  • error code 0x80070643
  • 0x80070643

1. Restart your computer and try again

1.Press the "Windows" key and "R" at the same time. 2.Type "reboot" in the input box and click "OK". 3.Your computer will restart. 4.If the problem persists, try using the "Windows" key and "R" keys together to open the "Run" window. 5.Type "cmd" and click "OK". 6.Type "net stop netlogon" and press "Enter". 7.Type "net start netlogon" and press "Enter". 8.Navigate to the "C:\Windows\System32" folder. 9.Open the "winlogon.exe" file and press "Delete". 10.Navigate to the "C:\Windows\System32\services" folder. 11.Open the "netlogon.exe" file and press "Start". 12.If the problem persists, try using the "Windows" key and "R" keys together to open the "Run" window. 13.Type "cmd" and click "OK". 14.Type "net stop netlogon" and press "Enter". 15.Type "net start netlogon" and press "Enter".

2. Update your computer

  1. Restart your computer.
  2. Open the Windows Update utility.
  3. Click on the Check for updates button.
  4. If available, click on the Update button.
  5. If an update is found, it will be displayed.
  6. Click on the Download and install button.
  7. Follow the on-screen instructions to install the update.

3. Download and install the latest version of the software

  1. Go to the official website of the software and download the latest version.
  2. After you have downloaded the file, open it and install it on your computer.
  3. After the software has been installed, launch it and click on the “Help” button.
  4. On the “Help” window, click on the “Troubleshooting” tab.
  5. On the “Troubleshooting” tab, click on the “0x80070643” button.
  6. In the “0x80070643” window, you will see a list of options. Click on the “Fix problem” button.
  7. After the software has been fixated, close the “0x80070643” window and restart your computer.

4. Scan your computer for malware

  1. Boot your computer into Safe Mode with Networking.
  2. Check for any unusual files or programs that may be causing the issue.
  3. Use a malware removal tool to remove any suspicious files.
  4. Reboot your computer and check for the issue again.

Still not working? maybe try one of these options:

  1. Run the Windows Update Troubleshooter.
  2. Temporarily disable your antivirus software.
  3. Install the latest Windows service pack.
  4. Perform a clean boot of your computer.
  5. Use the System File Checker tool to repair corrupted files.
  6. Reinstall the software.