Hi everyone, welcome back. In this lecture, you're going to learn how to edit a VM configuration. So, let's jump right in. In a production environment, you may find yourself in a spot where you need to change the machine type of a VM or some other configuration of the instance. In this demonstration, I want to show you how to change the machine type of a stopped instance. 

Now, as long as my instance isn't part of an instance group, I can change the machine type without affecting the instance's persistent disk data, SSH keys, or other instance configurations like instance metadata. However, if my instance is using an ephemeral external IP address, that IP address might change. Let's open up my VM here. And to change the machine type here, I need to first stop my instance. I can do this via the console, via the setMachineType method in the API, or via gcloud. For this exercise, I'm going to do this in the console.

So let me go ahead and stop my instance here. So now that my instance is stopped, I can click the Edit button here at the top of the page. Under the Machine configuration section here, I need to choose the new machine type that I want to use. I could also create a custom machine type if I wanted to as well. Now, for this exercise, I'll just select a new type here, and then I'll save my changes at the bottom. At this point, I can start my instance back up using the new machine type. And that's how you stop a VM and then edit its configuration.