Hi John,
0x80070020 occurs if a program is interfering with the automatic update process. It might be an anti-virus or any third-party application. We recommend performing a clean boot to determine if there are any third party applications/software that's causing the issue. Clean Boot Disclaimer: Please go through the section: How to reset the computer to start as usual after troubleshooting with clean boot of the Kb article to boot the computer in normal startup after fixing the issue.
If the issue persists, follow the steps below to run the Windows in built troubleshooter. This is a diagnostic which helps to identify any potential issues related to Windows update present in your PC. Here's how:
- Type troubleshooting on your search bar and press Enter.
- Select Troubleshoot > Windows Update > Run the troubleshooter.
Let us know the outcome. We will be glad to assist you.