diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
index 0547a2fcf596f..d6e8393d45051 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
@@ -1179,8 +1179,18 @@ void DesktopWindowTreeHostWin::HandleMove() {
   // Adding/removing a monitor, or changing the primary monitor can cause a
   // WM_MOVE message before `OnDisplayChanged()`. Without this call, we would
   // DCHECK due to stale `DisplayInfo`s. See https:://crbug.com/1413940.
+  // UpdateDisplayInfosIfNeeded() may synchronously notify DisplayObservers,
+  // one of which may close this Widget and free `this` (see the matching
+  // guard in HWNDMessageHandler::OnDpiChanged).
+  auto ref = GetWeakPtr();
   display::win::GetScreenWin()->UpdateDisplayInfosIfNeeded();
+  if (!ref) {
+    return;
+  }
   CheckForMonitorChange();
+  if (!ref) {
+    return;
+  }
   OnHostMovedInPixels();
 }
 
diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
index 16751cc7016a7..7e7324a565b71 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -2377,7 +2377,13 @@ LRESULT HWNDMessageHandler::OnInputEvent(UINT message,
 }
 
 void HWNDMessageHandler::OnMove(const gfx::Point& point) {
+  // HandleMove() may synchronously destroy `this` via DisplayObserver
+  // notifications (see DesktopWindowTreeHostWin::HandleMove).
+  auto ref = msg_handler_weak_factory_.GetWeakPtr();
   delegate_->HandleMove();
+  if (!ref) {
+    return;
+  }
   SetMsgHandled(FALSE);
 }