diff --git a/auto_cpufreq/gui/app.py b/auto_cpufreq/gui/app.py
index abbc1f0..80166c4 100644
--- a/auto_cpufreq/gui/app.py
+++ b/auto_cpufreq/gui/app.py
@@ -6,6 +6,7 @@ from gi.repository import Gtk, GLib, Gdk, Gio, GdkPixbuf
 
 import os
 import sys
+from threading import Thread
 
 sys.path.append("../")
 from auto_cpufreq.core import is_running
@@ -59,7 +60,7 @@ class ToolWindow(Gtk.Window):
         self.hbox.pack_start(self.vbox_right, False, False, 0)
 
 
-        GLib.timeout_add_seconds(5, self.refresh)
+        GLib.timeout_add_seconds(5, self.refresh_in_thread)
 
     def daemon_not_running(self):
         self.box = DaemonNotRunningView(self)
@@ -78,9 +79,12 @@ class ToolWindow(Gtk.Window):
         self.gtk_context.add_provider_for_screen(screen, self.gtk_provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
         self.gtk_provider.load_from_file(Gio.File.new_for_path(CSS_FILE))
 
-    def refresh(self):
+    def refresh_in_thread(self):
+        Thread(target=self._refresh).start()
+        return True
+
+    def _refresh(self):
         self.systemstats.refresh()
         self.currentgovernor.refresh()
         self.cpufreqstats.refresh()
-        return True
 
diff --git a/auto_cpufreq/gui/objects.py b/auto_cpufreq/gui/objects.py
index 7c31b62..d84b947 100644
--- a/auto_cpufreq/gui/objects.py
+++ b/auto_cpufreq/gui/objects.py
@@ -7,6 +7,7 @@ from gi.repository import Gtk, GdkPixbuf
 import sys
 import os
 import platform as pl
+from threading import Thread
 
 sys.path.append("../../")
 from subprocess import getoutput, run, PIPE
@@ -181,7 +182,8 @@ class DropDownMenu(Gtk.MenuButton):
         confirm.destroy()
         if response == Gtk.ResponseType.YES:
             try:
-                result = run("pkexec auto-cpufreq --remove", shell=True, stdout=PIPE, stderr=PIPE)
+                # run in thread to prevent GUI from hanging
+                result = Thread(target=run, args=("pkexec auto-cpufreq --remove",), kwargs={"shell": True, "stdout": PIPE, "stderr": PIPE}).start()
                 if result.stderr.decode() == PKEXEC_ERROR:
                     raise Exception("Authorization was cancelled")
                 dialog = Gtk.MessageDialog(
@@ -263,7 +265,8 @@ class DaemonNotRunningView(Gtk.Box):
 
     def install_daemon(self, button, parent):
         try:
-            result = run("pkexec auto-cpufreq --install", shell=True, stdout=PIPE, stderr=PIPE)
+            # run in thread to prevent GUI from hanging
+            result = Thread(target=run, args=("pkexec auto-cpufreq --install",), kwargs={"shell": True, "stdout": PIPE, "stderr": PIPE}).start()
             if result.stderr.decode() == PKEXEC_ERROR:
                 raise Exception("Authorization was cancelled")
             elif result.stderr is not None: