diff --git a/.bin/Scripts/functions/activation.py b/.bin/Scripts/functions/activation.py
index 3eea560c..305d9559 100644
--- a/.bin/Scripts/functions/activation.py
+++ b/.bin/Scripts/functions/activation.py
@@ -4,10 +4,9 @@ import subprocess
 
 from borrowed import acpi
 from functions.common import *
-from os import environ
 
 # Variables
-SLMGR = r'{}\System32\slmgr.vbs'.format(environ.get('SYSTEMROOT'))
+SLMGR = r'{}\System32\slmgr.vbs'.format(global_vars['Env']['SYSTEMROOT'])
 
 def activate_with_bios():
     """Attempt to activate Windows with a key stored in the BIOS."""
diff --git a/.bin/Scripts/functions/common.py b/.bin/Scripts/functions/common.py
index fc4ed20e..ad4a3c49 100644
--- a/.bin/Scripts/functions/common.py
+++ b/.bin/Scripts/functions/common.py
@@ -52,7 +52,7 @@ class NotInstalledError(Exception):
 class NoProfilesError(Exception):
     pass
 
-class PathNotFoundException(Exception):
+class PathNotFoundError(Exception):
     pass
 
 class UnsupportedOSError(Exception):
@@ -174,7 +174,7 @@ def human_readable_size(size, decimals=0):
         size = convert_to_bytes(size)
 
     # Verify we have a valid size
-    if size <= 0:
+    if size < 0:
         return '{size:>{width}} b'.format(size='???', width=width)
 
     # Convert to sensible units
@@ -432,7 +432,7 @@ def try_and_print(message='Trying...',
         err = traceback.format_exc()
 
     # Return or raise?
-    if bool(err) and not catch_all:
+    if err and not catch_all:
         raise
     else:
         return {'CS': not bool(err), 'Error': err}
diff --git a/.bin/Scripts/functions/data.py b/.bin/Scripts/functions/data.py
index 47714b9d..12d568b7 100644
--- a/.bin/Scripts/functions/data.py
+++ b/.bin/Scripts/functions/data.py
@@ -374,7 +374,7 @@ def scan_source_wim(source_wim, dest_path, rel_path=None, interactive=True):
 
 def select_destination(folder_path, prompt='Select destination'):
     """Select destination drive, returns path as string."""
-    disk = select_disk(prompt)
+    disk = select_volume(prompt)
     if 'fixed' not in disk['Disk'].opts:
         folder_path = folder_path.replace('\\', '-')
     path = '{disk}{folder_path}_{Date}'.format(
@@ -388,7 +388,7 @@ def select_destination(folder_path, prompt='Select destination'):
 
     return path
 
-def select_disk(title='Select disk', auto_select=True):
+def select_volume(title='Select disk', auto_select=True):
     """Select disk from attached disks. returns dict."""
     actions =   [{'Name': 'Quit', 'Letter': 'Q'}]
     disks =     []
diff --git a/.bin/Scripts/functions/info.py b/.bin/Scripts/functions/info.py
index 5ce703f3..38f1f7c5 100644
--- a/.bin/Scripts/functions/info.py
+++ b/.bin/Scripts/functions/info.py
@@ -146,7 +146,7 @@ def get_shell_path(folder, user='current'):
     if folderid:
         try:
             path = knownpaths.get_path(folderid, getattr(knownpaths.UserHandle, user))
-        except PathNotFoundException:
+        except PathNotFoundError:
             # Folder not found, ignore and return None
             pass