diff --git a/scripts/wk/repairs/win.py b/scripts/wk/repairs/win.py
index 7e045c7f..910768c1 100644
--- a/scripts/wk/repairs/win.py
+++ b/scripts/wk/repairs/win.py
@@ -32,17 +32,6 @@ from wk.kit.tools     import (
   run_tool,
   )
 from wk.log           import format_log_path, update_log_path
-from wk.os.win        import (
-  get_timezone,
-  set_timezone,
-  reg_delete_value,
-  reg_read_value,
-  reg_set_value,
-  reg_write_settings,
-  disable_service,
-  enable_service,
-  stop_service,
-  )
 from wk.std           import (
   GenericError,
   GenericWarning,
@@ -61,6 +50,32 @@ from wk.std           import (
   sleep,
   strip_colors,
   )
+if platform.system() == 'Windows':
+  from wk.os.win        import (
+    get_timezone,
+    set_timezone,
+    reg_delete_value,
+    reg_read_value,
+    reg_set_value,
+    reg_write_settings,
+    disable_service,
+    enable_service,
+    stop_service,
+    )
+else:
+  # Workaround to allow basic testing under non-Windows environments
+  def no_op(*args, **kwargs): # pylint: disable=unused-argument
+    """No-op function."""
+  # wk.os.win
+  get_timezone = no_op
+  set_timezone = no_op
+  reg_delete_value = no_op
+  reg_read_value = no_op
+  reg_set_value = no_op
+  reg_write_settings = no_op
+  disable_service = no_op
+  enable_service = no_op
+  stop_service = no_op
 
 
 # STATIC VARIABLES
@@ -118,7 +133,9 @@ PROGRAMFILES_32 = os.environ.get(
     'PROGRAMFILES', r'C:\Program Files (x86)',
     ),
   )
-OS_VERSION = float(platform.win32_ver()[0])
+OS_VERSION = -1
+if platform.system() == 'Windows':
+  OS_VERSION = float(platform.win32_ver()[0])
 POWER_PLANS = {
   'Balanced':         '381b4222-f694-41f0-9685-ff5bb260df2e',
   'Custom':           '01189998-8199-9119-725c-ccccccccccc3',
diff --git a/scripts/wk/setup/win.py b/scripts/wk/setup/win.py
index 80a8ef94..cd0e29b5 100644
--- a/scripts/wk/setup/win.py
+++ b/scripts/wk/setup/win.py
@@ -8,25 +8,10 @@ import os
 import platform
 import re
 import sys
-import time
 
-from subprocess       import CalledProcessError, DEVNULL
-
-from wk.cfg.main      import KIT_NAME_FULL, KIT_NAME_SHORT
-from wk.exe           import (
-  get_procs,
-  kill_procs,
-  run_program,
-  popen_program,
-  wait_for_procs,
-  )
-from wk.io            import (
-  case_insensitive_path,
-  delete_folder,
-  get_path_obj,
-  non_clobber_path,
-  rename_item,
-  )
+from wk.cfg.main      import KIT_NAME_FULL
+from wk.exe           import kill_procs, run_program, popen_program
+from wk.io            import case_insensitive_path, get_path_obj
 from wk.kit.tools     import (
   ARCH,
   download_tool,
@@ -37,28 +22,7 @@ from wk.kit.tools     import (
   run_tool,
   )
 from wk.log           import format_log_path, update_log_path
-from wk.os.win        import (
-  activate_with_bios,
-  reg_delete_value,
-  reg_read_value,
-  reg_set_value,
-  reg_write_settings,
-  disable_service,
-  enable_service,
-  stop_service,
-  )
-from wk.repairs.win   import (
-  backup_all_browser_profiles,
-  backup_registry,
-  create_custom_power_plan,
-  create_system_restore_point,
-  enable_windows_updates,
-  export_power_plans,
-  reset_power_plans,
-  set_system_restore_size,
-  )
 from wk.std           import (
-  GenericError,
   GenericWarning,
   Menu,
   TryAndPrint,
@@ -75,6 +39,41 @@ from wk.std           import (
   sleep,
   strip_colors,
   )
+if platform.system() == 'Windows':
+  from wk.os.win        import (
+    activate_with_bios,
+    reg_read_value,
+    reg_set_value,
+    reg_write_settings,
+    )
+  from wk.repairs.win   import (
+    backup_all_browser_profiles,
+    backup_registry,
+    create_custom_power_plan,
+    create_system_restore_point,
+    enable_windows_updates,
+    export_power_plans,
+    reset_power_plans,
+    set_system_restore_size,
+    )
+else:
+  # Workaround to allow basic testing under non-Windows environments
+  def no_op(*args, **kwargs): # pylint: disable=unused-argument
+    """No-op function."""
+  # wk.os.win
+  activate_with_bios = no_op
+  reg_read_value = no_op
+  reg_set_value = no_op
+  reg_write_settings = no_op
+  # wk.repairs.win
+  backup_all_browser_profiles = no_op
+  backup_registry = no_op
+  create_custom_power_plan = no_op
+  create_system_restore_point = no_op
+  enable_windows_updates = no_op
+  export_power_plans = no_op
+  reset_power_plans = no_op
+  set_system_restore_size = no_op
 
 
 # STATIC VARIABLES