How to fix WINDOWS DEFENDER ERROR 0X80070422 Issues?

If you’re seeing error 0x80070422 in Windows 10, chances are that you’re having a issue with Windows Update. Let’s look at how to fix WINDOWS DEFENDER ERROR 0X80070422 and what causes this issue.

Restart Your PC

While it’s common advice for all errors, it’s important to restart your computer before moving onto further troubleshooting. Restarting can often clear up temporary issues, so you don’t want to waste time working on a issue that has a simple fix.

After you reboot, try to install the newest updates again at Settings > Update & Security > Windows Update. If you see the error again, continue on. keep in mind that it’s not a bad idea to restart after performing each of the below steps, either.

Fix the Windows Update Service
Much of the time, Windows Update error 0x80070422 happens because of a problem with the Windows Update service. If you weren’t aware, Windows services are processes that run in the background, independently of your user account. Your computer has dozens of services, most of which run at startup and work silently.

The Windows Update service is one that’s built into Windows. If this stops working properly, Windows Update will fail to run properly. Thus, it’s a wise place to check first—just note you need admin rights to use it.

To open the Services manager, type services into the start menu to open its panel. You’ll see a list of dozens of services here, but you only need to worry about one for now: Windows Update. Double-click it to open the Properties window, where you can change how it works.

If the Startup type box say's Disabled, this is likely what’s causing error 0x80070422. The default option is Manual (Trigger Start); since you’re having a problem, try Automatic. Also on this page, if the Service status says Stopped, click Start.
After making these changes, try running Windows Update again.

Restart Other Services

While you’re in the Services panel, there’s another service to check: Network List. This service is responsible for identifying networks your computer is connected to and keeping information about them, so you wouldn’t think it’s relevant. Despite this, many people have reported that restarting it fixes error 0x80070422.

In the Services manager, locate Network List Service. Right-click it and choose Restart to kill it and begin it again, which will hopefully fix the issue.

While you’re here, or if further steps don’t fix the issue, you should also make sure that all of the following services are running:

Run the Windows Update Troubleshooter

Head to Settings > Update & Security > Troubleshoot and click Additional troubleshooters to see the complete list of tools. Under get up and running, select Windows Update > Run the troubleshooter to launch the appropriate one.

The tool will check for problems, then let you know if it finds actions to take. If it couldn’t identify the issue, you can select View detailed information to see what Windows tested for.