Can´t exit text eyedropper tool

Pop up windows can sometimes get hidden behind other panels.  Photoshop will not let you do anything till you have responded to the pop-up.  If you can't see the pop up, try Ālt Tab to display all open windows, and you'll hopefully see what you need to give focus to.

If the pop-up already has focus, then even when you can't see it you can hit Enter to OK it, or Escape to cancel out of it.  If you still can't make this work for you, you need to make sure Photoshop has focus, so if you Alt TAB and chose Photoshop, that should make the pop-up active so you can OK or Escape out of it.

@Gonfrio 

You need to do one of two things. Look a little to the right of the color swatch you circled, then:

• Click the checkbox to confirm the options you've just set
  or
• Click the "no" circle with the slash to cancel

You have to commit or cancel before you can proceed with other commands.

Jane