diff --git a/ascmhl/commands.py b/ascmhl/commands.py
index 4003292..5ae08ca 100644
--- a/ascmhl/commands.py
+++ b/ascmhl/commands.py
@@ -232,7 +232,7 @@ def create_for_folder_subcommand(
 
     # we collect all paths we expect to find first and remove every path that we actually found while
     # traversing the file system, so this set will at the end contain the file paths not found in the file system
-    not_found_paths = existing_history.set_of_file_paths()
+    not_found_paths = existing_history.set_of_file_paths(potential_windows_paths=convert_windows_paths)
     renamed_files = existing_history.renamed_path_with_previous_path()
     not_found_paths = {p if renamed_files.get(p, None) is None else renamed_files[p] for p in not_found_paths}
     new_paths = set()
diff --git a/ascmhl/hashlist.py b/ascmhl/hashlist.py
index 642b19f..bdbb81b 100644
--- a/ascmhl/hashlist.py
+++ b/ascmhl/hashlist.py
@@ -11,6 +11,7 @@
 from typing import List, Dict, Optional, Set
 from datetime import datetime
 import os
+from pathlib import Path
 
 from . import logger
 from .ignore import MHLIgnoreSpec
@@ -76,10 +77,13 @@ def find_or_create_media_hash_for_path(self, relative_path, file_size, file_modi
             self.append_hash(media_hash)
         return media_hash
 
-    def set_of_file_paths(self, root_path) -> Set[str]:
+    def set_of_file_paths(self, root_path, potential_windows_paths=False) -> Set[str]:
         all_paths = set()
         for media_hash in self.media_hashes:
-            all_paths.add(os.path.join(root_path, media_hash.path))
+            media_path = media_hash.path
+            if potential_windows_paths:
+                media_path = Path(media_path).as_posix()
+            all_paths.add(os.path.join(root_path, media_path))
         return all_paths
 
     def renamed_path_with_previous_path(self, root_path):
diff --git a/ascmhl/history.py b/ascmhl/history.py
index 5a0024f..ce26fb2 100644
--- a/ascmhl/history.py
+++ b/ascmhl/history.py
@@ -189,10 +189,12 @@ def find_history_for_path(self, relative_path: str) -> Tuple[MHLHistory, str]:
             dir_path = os.path.dirname(dir_path)
         return self, relative_path
 
-    def set_of_file_paths(self) -> Set[str]:
+    def set_of_file_paths(self, potential_windows_paths=False) -> Set[str]:
         all_paths = set()
         for hash_list in self.hash_lists:
-            all_paths.update(hash_list.set_of_file_paths(self.get_root_path()))
+            all_paths.update(
+                hash_list.set_of_file_paths(self.get_root_path(), potential_windows_paths=potential_windows_paths)
+            )
         for child_history in self.child_histories:
             all_paths.update(child_history.set_of_file_paths())
         return all_paths