Locating an OS X window that is no longer visible
I started the installation of a program on a MacBook Pro laptop running
Yosemite (10.10.5), but then switched to a
Terminal window. When I wanted to switch back to the installation window
I could no longer find it in the
dock at the bottom of the screen, nor could I see it by cycling through open
windows with the Command-Tab keys, nor did I see it when I clicked on
the Apple icon at the upper, left-hand corner of the screen and looked for it
under Force Quit. When I tried to restart the installation by
clicking on the Apple Disk Image .dmg file, nothing appeared to happen.
I was able to find the invisible window by hitting the F3 function
key on the keyboard, though.
I could then see the hidden DiskImages UI Agent window that I hadn't
been able to locate previously. I was able to click on it and bring it
to the foreground where I could proceed with the installation.