diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs b/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
index 5473a6b91..bc79219b6 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/Main.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Runtime.InteropServices;
diff --git a/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs b/Plugins/Flow.Launcher.Plugin.Explorer/Search/WindowsIndex/IndexSearch.cs
index 2e842c843..318a9bde9 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 Flow.Launcher.Plugin.Explorer.Search.QuickAccessLinks;
 using Microsoft.Search.Interop;
 using System;
@@ -17,7 +17,7 @@ namespace Flow.Launcher.Plugin.Explorer.Search.WindowsIndex
     {
 
         // Reserved keywords in oleDB
-        private const string reservedStringPattern = @"^[`\@\#\^,\&\/\\\$\%_;\[\]]+$";
+        private const string reservedStringPattern = @"^[`\@\＠\#\＃\＊\^,\&\＆\/\\\$\%_;\[\]]+$";
 
         internal static async Task<List<Result>> ExecuteWindowsIndexSearchAsync(string indexQueryString, string connectionString, Query query, CancellationToken token)
         {
@@ -29,7 +29,7 @@ namespace Flow.Launcher.Plugin.Explorer.Search.WindowsIndex
                 await using var conn = new OleDbConnection(connectionString);
                 await conn.OpenAsync(token);
                 token.ThrowIfCancellationRequested();
-
+                
                 await using var command = new OleDbCommand(indexQueryString, conn);
                 // Results return as an OleDbDataReader.
                 await using var dataReaderResults = await command.ExecuteReaderAsync(token) as OleDbDataReader;
diff --git a/README.md b/README.md
index 7b8d15830..58dbd0be9 100644
--- a/README.md
+++ b/README.md
@@ -234,7 +234,6 @@ And you can download <a href="https://github.com/Flow-Launcher/Flow.Launcher/dis
 | <kbd>Ctrl</kbd> +<kbd>I</kbd>                                | Open Settings window                         |
 | <kbd>F5</kbd>                                                | Reload all plugin data                       |
 | <kbd>Ctrl</kbd> + <kbd>H</kbd>                               | Open search history                          |
-| <kbd>Ctrl</kbd> + <kbd>Backspace</kbd>                       | Back to previous directory                   |
 
 
 ## System Command List