diff --git a/internal/platform/implementation/windows/file.cc b/internal/platform/implementation/windows/file.cc
index d0e4bc54..c134288b 100644
--- a/internal/platform/implementation/windows/file.cc
+++ b/internal/platform/implementation/windows/file.cc
@@ -113,7 +113,6 @@ Exception IOFile::Write(const ByteArray& data) {
     }
 
     file_.write(data.data(), data.size());
-    file_.flush();
     return {file_.good() ? Exception::kSuccess : Exception::kIo};
   } catch (...) {
     LOG(ERROR) << "Fail to write";