diff --git a/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs b/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs
index 5b1d47ef8..06059ceea 100644
--- a/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs
+++ b/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs
@@ -1,4 +1,4 @@
-using Flow.Launcher.Infrastructure.Logger;
+using Flow.Launcher.Infrastructure.Logger;
 using Microsoft.Search.Interop;
 using System;
 using System.Collections.Generic;
@@ -15,7 +15,7 @@ namespace Flow.Launcher.Plugin.Explorer.Search.WindowsIndex
         private readonly ResultManager resultManager;
 
         // Reserved keywords in oleDB
-        private readonly string reservedStringPattern = @"^[\/\\\$\%_]+$";
+        private readonly string reservedStringPattern = @"^[`\@\#\^,\&\/\\\$\%_]+$";
 
         internal IndexSearch(PluginInitContext context)
         {
diff --git a/Plugins/Flow.Launcher.Plugin.Explorer/Settings.cs b/Plugins/Flow.Launcher.Plugin.Explorer/Settings.cs
index e62ea93fc..e62637896 100644
--- a/Plugins/Flow.Launcher.Plugin.Explorer/Settings.cs
+++ b/Plugins/Flow.Launcher.Plugin.Explorer/Settings.cs
@@ -1,7 +1,6 @@
 using Flow.Launcher.Plugin.Explorer.Search;
 using Flow.Launcher.Plugin.Explorer.Search.FolderLinks;
 using System.Collections.Generic;
-using System.Text.Json.Serialization;
 
 namespace Flow.Launcher.Plugin.Explorer
 {