Windows key is nor working properly!

Hello Friends,

I am encountering a serious issue that Windows key is not working properly. And its not working when I am busy playing games. Any idea guys, would this method be helpful in anyway?

Please define "not working properly." In other words - what does it do when pressed?

When did the issue start? Were there any changes to the pc prior to the new issue?

Is this a laptop? If so, what happens if you plug in a full size keyboard?