diff --git a/.bin/Scripts/system_setup.py b/.bin/Scripts/system_setup.py
index b3f8279a..c1d8321a 100644
--- a/.bin/Scripts/system_setup.py
+++ b/.bin/Scripts/system_setup.py
@@ -155,6 +155,19 @@ SETUP_QUESTIONS = {
 
 
 # Functions
+def check_os_and_abort():
+  """Check OS and prompt to abort if not supported."""
+  result = try_and_print(
+    message='OS support status...',
+    function=check_os_support_status,
+    cs='GOOD',
+    )
+  if not result['CS'] and 'Unsupported' in result['Error']:
+    print_warning('OS version not supported by this script')
+    if not ask('Continue anyway? (NOT RECOMMENDED)'):
+      abort()
+
+
 def get_actions(setup_mode, answers):
   """Get actions to perform based on setup_mode, returns OrderedDict."""
   actions = OrderedDict({})
@@ -292,15 +305,7 @@ def main():
   clear_screen()
 
   # Check installed OS
-  result = try_and_print(
-    message='OS support status...',
-    function=check_os_support_status,
-    cs='GOOD',
-    )
-  if not result['CS'] and 'Unsupported' in result['Error']:
-    print_warning('OS version not supported by this script')
-    if not ask('Continue anyway? (NOT RECOMMENDED)'):
-      abort()
+  check_os_and_abort()
 
   # Get setup mode
   setup_mode = get_mode()