title: Login in screen pops up in sourcetree
body: <p>My desktop was previously used by the previous employee at my office. In <code>source tree</code> I have my account logged in but my at random times the previous users login screen pops up with username field disabled </p>
  
  <p><a href="https://i.stack.imgur.com/KDtQd.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KDtQd.jpg" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/hEh8k.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hEh8k.jpg" alt="enter image description here"></a></p>
  
  <p>and it comes two times,when I click cancel the second screen pops up. I am fed up with this problem. I have done with everything to try and solve this problem but it will just not go.</p>