diff --git a/BuildTime.txt b/BuildTime.txt
index 058c2d6..9201770 100644
--- a/BuildTime.txt
+++ b/BuildTime.txt
@@ -1 +1 @@
-2026-02-19 17:35:30
\ No newline at end of file
+2026-02-24 20:06:20
\ No newline at end of file
diff --git a/GitCommit.txt b/GitCommit.txt
index c463ee1..297fba9 100644
--- a/GitCommit.txt
+++ b/GitCommit.txt
@@ -1 +1 @@
-0147679
\ No newline at end of file
+0386511
\ No newline at end of file
diff --git a/System/FileSystem.cs b/System/FileSystem.cs
index 415dea5..dfe512e 100644
--- a/System/FileSystem.cs
+++ b/System/FileSystem.cs
@@ -308,7 +308,11 @@ namespace CMLeonOS
             {
                 if (File.Exists(fullPath))
                 {
-                    return File.ReadAllText(fullPath);
+                    using (FileStream fs = new FileStream(fullPath, FileMode.Open, FileAccess.Read))
+                    using (StreamReader sr = new StreamReader(fs))
+                    {
+                        return sr.ReadToEnd();
+                    }
                 }
                 else
                 {
@@ -389,15 +393,15 @@ namespace CMLeonOS
                 return currentDirectory;
             }
             
-            char[] invalidChars = { '<', '>', ':', '"', '|', '?', '*' };
-            foreach (char c in invalidChars)
-            {
-                if (path.Contains(c.ToString()))
-                {
-                    Console.WriteLine($"Error: Invalid character in path: '{c}'");
-                    return currentDirectory;
-                }
-            }
+            //char[] invalidChars = { '<', '>', ':', '"', '|', '?', '*' };
+            //foreach (char c in invalidChars)
+            //{
+            //    if (path.Contains(c.ToString()))
+            //    {
+            //        Console.WriteLine($"Error: Invalid character in path: '{c}'");
+            //        return currentDirectory;
+            //    }
+            //}
             
             if (path.Contains("//") || path.Contains("\\\\"))
             {
diff --git a/System/UserSystem.cs b/System/UserSystem.cs
index 08c7f31..4a09492 100644
--- a/System/UserSystem.cs
+++ b/System/UserSystem.cs
@@ -55,7 +55,7 @@ namespace CMLeonOS
 
         private static bool ContainsInvalidChars(string input)
         {
-            char[] invalidChars = { '<', '>', ':', '"', '|', '?', '*', '/', '\\' };
+            char[] invalidChars = { '<', '>', ':', '"', '|', '?', '*', '/', '\\', ' ' };
             foreach (char c in invalidChars)
             {
                 if (input.Contains(c.ToString()))
@@ -405,7 +405,7 @@ namespace CMLeonOS
                 {
                     CMLeonOS.UI.TUIHelper.SetColors(global::System.ConsoleColor.Red, global::System.ConsoleColor.Black);
                     global::System.Console.SetCursorPosition(7, 24);
-                    global::System.Console.Write("Username contains invalid characters: < > : \" | ? / \\      ");
+                    global::System.Console.Write("Username contains invalid characters: < > : \" | ? * / \\ space");
                     CMLeonOS.UI.TUIHelper.SetColors(global::System.ConsoleColor.White, global::System.ConsoleColor.Black);
                     global::System.Console.SetCursorPosition(7, 7);
                     global::System.Console.Write("Username: ");
diff --git a/editor/Nano.cs b/editor/Nano.cs
index 4fe9112..a4f666d 100644
--- a/editor/Nano.cs
+++ b/editor/Nano.cs
@@ -47,15 +47,22 @@ namespace CMLeonOS
 
                 if (value != null && fileSystem != null)
                 {
-                    string fullPath = fileSystem.GetFullPath(value);
-                    
-                    if (System.IO.File.Exists(fullPath))
+                    try
                     {
+                        string fullPath = fileSystem.GetFullPath(value);
                         string text = fileSystem.ReadFile(fullPath);
-                        text = text.Replace("\r\n", "\n");
-                        lines.AddRange(text.Split('\n'));
+                        
+                        if (!string.IsNullOrEmpty(text))
+                        {
+                            text = text.Replace("\r\n", "\n");
+                            lines.AddRange(text.Split('\n'));
+                        }
+                        else
+                        {
+                            lines.Add(string.Empty);
+                        }
                     }
-                    else
+                    catch
                     {
                         lines.Add(string.Empty);
                     }