How to disable Quick Actions in Visual Studio?

Question

I've googled extensively for this answer and it looks like being impossible. I've found a lot of people complaining and asking MS to make them optional since VS 2015, with no result. Like them, I think it's impossible to concentrate on your code with lightbulbs and screwdrivers flashing every time you move to another line. But I have a short story to tell.
I have been using VS 2015 for years, both at home and at work, and I have never seen those Quick Actions in my VS installations!
I remember to have tried VS 2017, and given up precisely because of those Quick Actions, which were absolutely new for me. Now I've taken a look at VS 2019, and they are still playing around.
Well, it seems I've found out what's different in my installations. When I right-click my C# code and click on Quick Actions I get this message:
.
The two computers have a quite different hardware, and in both I have made absolutely standard installations. I have never missed the Quick Actions, but although I have developed some quite complex applications, they were only for my own use. I've never published anything or tried to run them on other computers.
I really think I would like to also break Microsoft CodeAnalysis in VS 2019, so I could use the new features of C#.

Answer 1

You can disable CodeAnalysis for a project in the project properties> tab Code Analysis. For more details check this doc https://learn.microsoft.com/en-us/visualstudio/code-quality/disable-code-analysis?view=vs-2019.

As for the intelliSense, you can disable it by going to the tools menu > textEditor > C# > IntelliSense and uncheck the checkboxes.