Ubuntu
update-manager package

  1. Bug #1088132
  2. Comment #3

Comment 3 for bug 1088132

Revision history for this message
ironfisher (dgvalde) wrote :

I just experienced the same issue on ubuntu 12.10. The window has no "close" button. On the Unity's top bar there is no any option to close the window.

A workaround is to left-click on the launcher in the Unity's left-panel and choose "Exit". The window will disappear.