diff --git a/shell/windows/LayersShell/App.xaml.cs b/shell/windows/LayersShell/App.xaml.cs
index 7fd773e..680f4ff 100644
--- a/shell/windows/LayersShell/App.xaml.cs
+++ b/shell/windows/LayersShell/App.xaml.cs
@@ -51,7 +51,11 @@ public partial class App : Application
         try
         {
             var path = Path.Combine(Path.GetTempPath(), "layers-shell.log");
-            File.AppendAllText(path, DateTime.Now.ToString("HH:mm:ss.fff ") + line + Environment.NewLine);
+            var text = DateTime.Now.ToString("HH:mm:ss.fff ") + line + Environment.NewLine;
+            using var fs = new FileStream(path, FileMode.Append, FileAccess.Write, FileShare.Read);
+            var bytes = System.Text.Encoding.UTF8.GetBytes(text);
+            fs.Write(bytes, 0, bytes.Length);
+            fs.Flush(flushToDisk: true);
         }
         catch { }
     }