[Docker for Windows] The Docker app suddenly stopped working ...

Today, when I tried to start Docker normally, Docker did not start with Docker is starting ... for some reason. It was a sudden event, so I was impatient. After all Docker for Windows is still a little unstable, I want to buy a Mac soon, w

~~ By the way, Docker for Windows can only be used on Windows 10 Pro, so this article is for those who are developing on Windows 10 Pro. ~~ There was a comment pointed out by @userisgod. It seems that Docker for Window will also support Window10 Home when WSL2 is supported. Reference article

solution

Uninstall the Docker app and reinstall it. I was cured by this.

**※Note If you have important data in the container, all of it will be erased (naturally), so be sure to keep backup data. ** **

Other solutions ①

In addition to ↑, uninstall Hyper-V and reinstall it.

Docker for Windows runs on Hyper-V, a server virtualization technology from Microsoft. Use the native function of the OS. Since this Hyper-V is only available in Window10 Pro, it cannot be used in HOME editions.

Other solutions ②

Unchecked the control flow guard in Hyper-V.

【Method】

1. Enter Windows Security from the search window to launch the app.
2. App and browser controls
3. Exploit protection settings (well down)
4. Program settings tab 5.C: \ WINDOWS \ System32 \ vmcompute.exe> Edit
5. Uncheck "Override System" in the Control Flow Guard (CFG) settings and click the Apply button.

Thank you for reading to the end!

The above is something you can feel free to do, so please give it a try. If this does not solve the problem, please refer to "Force start with command" in this article!