diff --git a/tools/set-exlorer-viewmode.ps1 b/tools/set-exlorer-viewmode.ps1
index fc51296..f83b6fa 100644
--- a/tools/set-exlorer-viewmode.ps1
+++ b/tools/set-exlorer-viewmode.ps1
@@ -24,9 +24,15 @@ Copy-Item $src "$(Split-Path $dst)" -Recurse
 
 # Set all 'LogicalViewMode' values to the desired style
 Get-ChildItem $topViews | % {
+
   $key2edit = (get-item $_.PSParentPath).OpenSubKey($_.PSChildName, $True);
   $key2edit.SetValue('LogicalViewMode', $ViewMode)
+
+  # delete ANY "GroupBy" mode in any folder of explorer ...
+  $key2edit.SetValue('GroupBy','')
+
   $key2edit.Close()
+
 }
 
 # restart explorer ...