When a firewall is enabled in Windows 7, the following error occurs: 0x80070422.

Today, when I turned on the Windows 7 firewall on my computer, I couldn't start it. The error 0x80070422 was prompted, and I was wondering if it would be poisoned. Let's share the solution.

Solution:

Method 1 enable the Windows Defender Service

1. Click start, and then type the service in the Start search box in the search program and file (Windows 7) or (Windows Vista.
2. Click Service (the cogwheel icon next to it), and then click Run as administrator. When prompted, enter the Administrator's username and password and press enter.
3. Scroll down until you see the Windows Defender service. Double-click the Windows Defender service.
4. Click Start type, and then click automatic.
5. restart the computer and enable Windows Firewall.

Method 2 Run Fix it in the attachment

Method 3 run msert

1. Visit http://www.microsoft.com/security/scanner/en-us/default.aspxto download msert.
2. Double-click to install.
3. After installation, you will be moved to your desktop and double-click the Microsoft Security Scanner icon.
4. Select all terms for accepting the above license agreement, and click Next twice.
5. Click quick scan, and then click Next.
6. The Microsoft Security Scanner scans your computer and deletes all malware.

Method 4 run Windows Update to Update all updates

1. Go to the control panel.
2. Select Windows Update.
3. Click Check update on the left.
4. Select and install all important updates.