diff --git a/installer/MMS_Installer.exe b/installer/MMS_Installer.exe
index db21437..262b791 100644
Binary files a/installer/MMS_Installer.exe and b/installer/MMS_Installer.exe differ
diff --git a/installer/UnitfrmMain.dfm b/installer/UnitfrmMain.dfm
index 91ff1dc..14b183c 100644
--- a/installer/UnitfrmMain.dfm
+++ b/installer/UnitfrmMain.dfm
@@ -11109,6 +11109,7 @@ object frmMain: TfrmMain
           OnCollapsing = trvDirectoriesCollapsing
           OnExpanding = trvDirectoriesExpanding
           OnExpanded = trvDirectoriesExpanded
+          OnMouseDown = trvDirectoriesMouseDown
         end
       end
       object pnlOS: TPanel
diff --git a/installer/UnitfrmMain.pas b/installer/UnitfrmMain.pas
index ac1128a..6a89ded 100644
--- a/installer/UnitfrmMain.pas
+++ b/installer/UnitfrmMain.pas
@@ -122,6 +122,8 @@ type
     procedure trvDirectoriesCollapsing(Sender: TObject; Node: TTreeNode;
       var AllowCollapse: Boolean);
     procedure trvModsClick(Sender: TObject);
+    procedure trvDirectoriesMouseDown(Sender: TObject;
+      Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
   private
     OldProgress: Integer;
     CurrProgress: Integer;
@@ -684,4 +686,15 @@ begin
     cmdNext.Enabled := False;
 end;
 
+procedure TfrmMain.trvDirectoriesMouseDown(Sender: TObject;
+  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
+var Node: TTreeNode;
+begin
+  Node := trvDirectories.GetNodeAt(X, Y);
+  if (Assigned(Node)) then begin
+    if (Node.DisplayRect(True).Right < X) then
+      trvDirectories.Selected := nil;
+  end;
+end;
+
 end.