Closing All Explorer Windows in PowerShell

Question

I am writing the following code to close all explorer windows with PowerShell:

(New-Object -comObject Shell.Application).Windows() |
 ? { $_.FullName -ne $null} |
 ? { $_.FullName.toLower().Endswith('\explorer.exe') } | % { $_.Quit() }

But it does not close out all the open windows. Instead, it closes only RoundDown(N/2)+1 windows, and leaves RoundUp(N/2)-1 windows open.

Can anyone help with this?

Answer 1

I think there's something in the pipeline that goes wrong. This code works:

$a = (New-Object -comObject Shell.Application).Windows() |
 ? { $_.FullName -ne $null} |
 ? { $_.FullName.toLower().Endswith('\explorer.exe') } 

 $a | % {  $_.Quit() }