The real problem you probably experience is that you go to paste, with CTRL+V. And you accidentally type CTRL+C, and end up overwriting the stuff that’s on your clipboard. You can’t disable this as far as I know, however, the work around for this, is that you can press CTRL+SHIFT+V multiple times to go back up the stack of things you have copied in visual studio. Not only does this allow you to recover what you originally copied, but you’ll also find that CTRL+SHIFT+V very useful in a lot of other situations.