diff --git a/web/pgadmin/__init__.py b/web/pgadmin/__init__.py
index 6c538f67b..9a78e8987 100644
--- a/web/pgadmin/__init__.py
+++ b/web/pgadmin/__init__.py
@@ -338,7 +338,8 @@ def create_app(app_name=None):
                 set_version(CURRENT_SCHEMA_VERSION)
                 db.session.commit()
 
-        os.chmod(config.SQLITE_PATH, 0o600)
+        if os.name != 'nt':
+            os.chmod(config.SQLITE_PATH, 0o600)
 
     Mail(app)
 
diff --git a/web/pgadmin/setup/data_directory.py b/web/pgadmin/setup/data_directory.py
index 300dc7847..528bf6443 100644
--- a/web/pgadmin/setup/data_directory.py
+++ b/web/pgadmin/setup/data_directory.py
@@ -25,19 +25,21 @@ def create_app_data_directory(config):
     # Try to set the permissions on the direectory, but don't complain
     # if we can't. This may be the case on a mounted directory, e.g. in
     # OpenShift. We'll still secure the config database anyway.
-    try:
-        os.chmod(os.path.dirname(config.SQLITE_PATH), 0o700)
-    except Exception as e:
-        # The flask app isn't setup yet, so we can't use the logger
-        print('WARNING: Failed to set ACL on the directory containing the '
-              'configuration database: {}'.format(e))
+    if os.name != 'nt':
+        try:
+            os.chmod(os.path.dirname(config.SQLITE_PATH), 0o700)
+        except Exception as e:
+            # The flask app isn't setup yet, so we can't use the logger
+            print('WARNING: Failed to set ACL on the directory containing the '
+                  'configuration database: {}'.format(e))
 
     # Create the directory containing the log file (if not present).
     _create_directory_if_not_exists(os.path.dirname(config.LOG_FILE))
 
     # Create the session directory (if not present).
     _create_directory_if_not_exists(config.SESSION_DB_PATH)
-    os.chmod(os.path.dirname(config.SESSION_DB_PATH), 0o700)
+    if os.name != 'nt':
+        os.chmod(os.path.dirname(config.SESSION_DB_PATH), 0o700)
 
     # Create the storage directory (if not present).
     _create_directory_if_not_exists(config.STORAGE_DIR)
diff --git a/web/setup.py b/web/setup.py
index c9890aa3e..d725bbdf9 100644
--- a/web/setup.py
+++ b/web/setup.py
@@ -369,7 +369,8 @@ def setup_db():
                 version.value = CURRENT_SCHEMA_VERSION
                 db.session.commit()
 
-        os.chmod(config.SQLITE_PATH, 0o600)
+        if os.name != 'nt':
+            os.chmod(config.SQLITE_PATH, 0o600)
 
 
 if __name__ == '__main__':