diff --git a/oml/item/models.py b/oml/item/models.py
index b3e6a9c..b3a931d 100644
--- a/oml/item/models.py
+++ b/oml/item/models.py
@@ -570,8 +570,12 @@ class Item(db.Model):
         for f in self.files.all():
             path = f.fullpath()
             if os.path.exists(path):
-                os.unlink(path)
-                remove_empty_folders(os.path.dirname(path))
+                try:
+                    os.chmod(path, stat.S_IWRITE)
+                    os.unlink(path)
+                    remove_empty_folders(os.path.dirname(path))
+                except:
+                    pass
             state.db.session.delete(f)
         user = state.user()
         if user in self.users:
diff --git a/oml/item/scan.py b/oml/item/scan.py
index fb2cc35..7d117b1 100644
--- a/oml/item/scan.py
+++ b/oml/item/scan.py
@@ -5,6 +5,7 @@
 from datetime import datetime
 import os
 import shutil
+import stat
 import time
 
 import ox
@@ -235,7 +236,11 @@ def run_import(options=None):
                 file.move()
                 added += 1
             elif options.get('mode') == 'move':
-                os.unlink(f_import)
+                try:
+                    os.chmod(f_import, stat.S_IWRITE)
+                    os.unlink(f_import)
+                except:
+                    pass
             if listname:
                 listitems.append(file.item.id)
         if state.activity.get('cancel'):
diff --git a/oml/tor.py b/oml/tor.py
index 05f4a75..3b93e5f 100644
--- a/oml/tor.py
+++ b/oml/tor.py
@@ -87,6 +87,7 @@ DirReqStatistics 0
             cwd = os.path.dirname(tor)
             while self.running:
                 if sys.platform == 'win32':
+                    cwd = settings.data_path
                     startupinfo = subprocess.STARTUPINFO()
                     startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
                     startupinfo.wShowWindow = subprocess.SW_HIDE
diff --git a/oml/update.py b/oml/update.py
index 76d9bf0..d348f11 100644
--- a/oml/update.py
+++ b/oml/update.py
@@ -179,7 +179,7 @@ def install():
                     if os.path.exists(module):
                         move(module, module_old)
                     move(os.path.join(new, module), module)
-                    if os.path.exists(module_old):
+                    if platform != 'win32' and os.path.exists(module_old):
                         rmtree(module_old)
                     rmtree(new)
                 else: