This is something bugging me for more than a decade. Occasionally there is a program hang in Windows (in this case a setup program in Windows 10 Pro), I tried to close it from resource monitor and it disappeared after a while. However the window is still shown and I cannot open a new copy of the program. I launched Process Explorer from sysinternals but this window doesn't show in the list.

What's going on? How can I shut it down without rebooting? Thanks~~

  • 2
    Use Process Explorer and drag the bull's-eye icon over the window to find its process.
    – harrymc
    May 21 at 17:48
  • Thanks, I found it at the bottom with a different name, probably why I overlooked it at the beginning. May 21 at 21:53
  • I added an answer. If it was helpful, please consider marking it as accepted.
    – harrymc
    May 22 at 9:47

1 Answer 1


To find out which process is issuing a certain message, use Process Explorer.

Drag the bull's-eye icon over the window to select its process. You may then use the Del key or the right-click context menu to kill the process.

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