diff --git a/scripts/wk/os/win.py b/scripts/wk/os/win.py
index 4d73c21e..92d91525 100644
--- a/scripts/wk/os/win.py
+++ b/scripts/wk/os/win.py
@@ -219,7 +219,7 @@ def get_installed_ram(as_list=False, raise_exceptions=False):
   if raise_exceptions:
     if RAM_OK > mem.total >= RAM_WARNING:
       raise GenericWarning(mem_str)
-    if mem.total > RAM_WARNING:
+    if mem.total < RAM_WARNING:
       raise GenericError(mem_str)
 
   # Done
@@ -276,6 +276,11 @@ def get_raw_disks():
   json_data = get_json_from_command(cmd)
   raw_disks = []
 
+  # Bail early
+  if not json_data:
+    # No RAW disks detected
+    return raw_disks
+
   # Fix JSON if only one disk was detected
   if isinstance(json_data, dict):
     json_data = [json_data]
@@ -595,7 +600,7 @@ def is_secure_boot_enabled(raise_exceptions=False, show_alert=False):
     # Command completed
     enabled = 'True' in proc.stdout
     if 'False' in proc.stdout:
-      msg_error = 'ERROR'
+      msg_error = 'DISABLED'
     else:
       msg_warning = 'UNKNOWN'
 
@@ -603,9 +608,8 @@ def is_secure_boot_enabled(raise_exceptions=False, show_alert=False):
   for msg, exc in ((msg_error, GenericError), (msg_warning, GenericWarning)):
     if not msg:
       continue
-    msg = f'Secure Boot {msg}'
     if show_alert:
-      show_alert_box(msg)
+      show_alert_box(f'Secure Boot {msg}')
     if raise_exceptions:
       raise exc(msg)
     break
diff --git a/scripts/wk/setup/win.py b/scripts/wk/setup/win.py
index eac9b0f7..bfe076fb 100644
--- a/scripts/wk/setup/win.py
+++ b/scripts/wk/setup/win.py
@@ -645,8 +645,10 @@ def install_firefox():
   profile then it is reverted so the original existing profile instead.
   """
   current_default_profile = None
-  firefox_exe = f'{os.environ["PROGRAMFILES"]}/Mozilla Firefox/firefox.exe'
-  profiles_ini = case_insensitive_path(
+  firefox_exe = get_path_obj(
+    f'{os.environ["PROGRAMFILES"]}/Mozilla Firefox/firefox.exe',
+    )
+  profiles_ini = get_path_obj(
     f'{os.environ["APPDATA"]}/Mozilla/Firefox/profiles.ini',
     )
   program_path_32bit_exists = False
@@ -673,7 +675,7 @@ def install_firefox():
   run_tool('Firefox', 'Firefox', '/S', download=True)
 
   # Open Firefox to force profiles.ini update
-  popen_program(firefox_exe)
+  popen_program([firefox_exe])
   sleep(5)
   kill_procs('firefox.exe', force=True)