I don't like the new look, and I don't want to change over to it. So, I click the "Not Now" button, but every so often, up pops a reminder. How can I get rid of the notification, permanently (at least until the next install)?
When a developer creates a "feature" and advertises to switch to it, the last thing the developer wants, is keep nagging the user that already clicked the button they want to click. Its a strange logic, but clicking on the x or not now is not the same as yes and then switching back.
Each button has logic behind it, and if you click the Try Now button, one of the things most developers will do is ensure that popup never comes back. Microsoft is one of those that does it right. They will nag you to try out features, but if you tried it and then switch back, they should not bother you with it again.
So the easiest solution is going to be, click the button to switch to it, then simply switch back to what you want.