diff --git a/setup.py b/setup.py
index ca41ec7..2b7baa5 100644
--- a/setup.py
+++ b/setup.py
@@ -27,6 +27,7 @@ import subprocess
 
 uninstallkey = []
 
+
 def on_dist_backup(operation,src,dst):
     # When we backup the distribution dir, we have to exclude
     # lightning as a new version will be installed, bundled with TB itself.
@@ -151,7 +152,11 @@ def uninstall():
 
 def audit():
     for reg in ['DisableAppUpdate','DisableTelemetry']:
-        if reg_key_exists(HKEY_LOCAL_MACHINE,r'SOFTWARE\Policies\Mozilla\Thunderbird\DisableAppUpdate'):
-            print(r'Key HKLM\SOFTWARE\Policies\Mozilla\Thunderbird\%s exists' % reg)
-        else:
-            print('ERROR : Keys is missing for disable update !')
\ No newline at end of file
+        if not registry_readstring(HKEY_LOCAL_MACHINE, r'SOFTWARE\Policies\Mozilla\Thunderbird\%s' % reg):
+            print(r'Warning : SOFTWARE\Policies\Mozilla\Thunderbird\%s is missing !' % reg)
+            return "WARNING"
+
+        value = registry_readstring(HKEY_LOCAL_MACHINE, r'SOFTWARE\Policies\Mozilla\Thunderbird\%s' % reg)
+        if value != "1" :
+            print("Warning : Thunderbird update is not disable !")
+            return "WARNING"
\ No newline at end of file