diff --git a/binaries/changlog.txt b/binaries/changlog.txt
index 587df6a..bfd17e6 100644
--- a/binaries/changlog.txt
+++ b/binaries/changlog.txt
@@ -17,3 +17,5 @@ Add sleep() and SwitchToThread() to limit spinning
 v3.3: Fix bug slots used before initialization,compare and swap is protecting updating committed, but it is not protecting the memory initialization. Adding atomic_flag commit_lock to protect against that
 Fix bug multiple threads committing at the same time, fixed by using atomic_flag commit_lock and re-checking committed after acquiring the lock
 Reorder helper functions
+
+v3.4: Rewriting hash_worker() to export file_hashes.txt
diff --git a/binaries/file_hasher_v3.4.exe b/binaries/file_hasher_v3.4.exe
new file mode 100644
index 0000000..3ad25de
Binary files /dev/null and b/binaries/file_hasher_v3.4.exe differ
diff --git a/platform_windows.c b/platform_windows.c
index 7107f7c..82dcc57 100644
--- a/platform_windows.c
+++ b/platform_windows.c
@@ -408,19 +408,64 @@ static void xxh3_hash_file_stream(const char *path, char *out_hex) {
 }
 
 // ------------------------- Hash worker --------------------------------
+// Functions without writing to disk
+// static DWORD WINAPI hash_worker(LPVOID arg) {
+//   MPMCQueue *q = (MPMCQueue *)arg;
+//
+//   for (;;) {
+//
+//     FileEntry *fe = mpmc_pop(q);
+//
+//     if (!fe)
+//       break; // poison pill
+//
+//     char hash[HASH_STRLEN];
+//     xxh3_hash_file_stream(fe->path, hash);
+//
+//     atomic_fetch_add(&g_files_hashed, 1);
+//
+//     free(fe->path);
+//     free(fe);
+//   }
+//
+//   return 0;
+// }
+
 static DWORD WINAPI hash_worker(LPVOID arg) {
   MPMCQueue *q = (MPMCQueue *)arg;
 
+  static CRITICAL_SECTION append_cs;
+  static LONG init = 0;
+
+  if (InterlockedCompareExchange(&init, 1, 0) == 0) {
+    InitializeCriticalSection(&append_cs);
+  }
+
   for (;;) {
-
     FileEntry *fe = mpmc_pop(q);
-
     if (!fe)
-      break; // poison pill
+      break;
 
     char hash[HASH_STRLEN];
     xxh3_hash_file_stream(fe->path, hash);
 
+    char created[32], modified[32];
+    format_time(fe->created_time, created, sizeof(created));
+    format_time(fe->modified_time, modified, sizeof(modified));
+
+    double size_kib = (double)fe->size_bytes / 1024.0;
+
+    EnterCriticalSection(&append_cs);
+
+    FILE *hf = fopen(FILE_HASHES_TXT, "a");
+    if (hf) {
+      fprintf(hf, "%s\t%s\t%.2f\t%s\t%s\t%s\n", hash, fe->path, size_kib,
+              created, modified, fe->owner);
+      fclose(hf);
+    }
+
+    LeaveCriticalSection(&append_cs);
+
     atomic_fetch_add(&g_files_hashed, 1);
 
     free(fe->path);