diff --git a/CMLeonOS.csproj b/CMLeonOS.csproj
index bfb4d5c..8b3b7f6 100644
--- a/CMLeonOS.csproj
+++ b/CMLeonOS.csproj
@@ -19,13 +19,14 @@
         <Profile>VMware</Profile>
         <Description>Use VMware Player or Workstation to deploy and debug.</Description>
         <PxeInterface>192.168.0.8</PxeInterface>
-        <CompressionType>Gzip</CompressionType>
+        <CompressionType>None</CompressionType>
         <BinFormat>Elf</BinFormat>
         <DebugEnabled>False</DebugEnabled>
         <CompileVBEMultiboot>False</CompileVBEMultiboot>
         <RemoveBootDebugOutput>False</RemoveBootDebugOutput>
 		<CosmosDisableDebugger>true</CosmosDisableDebugger>
 		<CosmosDebugLevel>None</CosmosDebugLevel>
+		<OptimizationLevel>1</OptimizationLevel>
     </PropertyGroup>
 
     <ItemGroup>
diff --git a/Kernel.cs b/Kernel.cs
index 404e241..a321a9c 100644
--- a/Kernel.cs
+++ b/Kernel.cs
@@ -57,9 +57,10 @@ namespace CMLeonOS
             Console.WriteLine(@" | |___| |  | | |__|  __/ (_) | | | | |_| |___) |");
             Console.WriteLine(@"  \____|_|  |_|_____\___|\___/|_| |_|____/|____/ ");
             Console.WriteLine();
-            Console.WriteLine("CMLeonOS Project");
+            Console.WriteLine("The CMLeonOS Project");
             Console.WriteLine("By LeonOS 2 Developement Team");
-            
+            Console.WriteLine(@"-------------------------------------------------");
+
             // 记录系统启动时间（用于uptime命令）
             SystemStartTime = DateTime.Now;
             _logger.Info("Kernel", $"System started at: {SystemStartTime.ToString("yyyy-MM-dd HH:mm:ss")}");
@@ -223,7 +224,6 @@ namespace CMLeonOS
                     // 检查文件是否为空
                     if (lines.Length == 0 || (lines.Length == 1 && string.IsNullOrWhiteSpace(lines[0])))
                     {
-                        Console.WriteLine("Startup script is empty, skipping...");
                         _logger.Warning("Kernel", "Startup script is empty, skipping");
                         return;
                     }
diff --git a/Logger/Logger.cs b/Logger/Logger.cs
index 0c1cdb9..9306075 100644
--- a/Logger/Logger.cs
+++ b/Logger/Logger.cs
@@ -89,7 +89,7 @@ namespace CMLeonOS.Logger
                     Console.ForegroundColor = ConsoleColor.Gray;
                     break;
                 case LogLevel.Info:
-                    Console.ForegroundColor = ConsoleColor.Cyan;
+                    Console.ForegroundColor = ConsoleColor.DarkCyan;
                     break;
                 case LogLevel.Warning:
                     Console.ForegroundColor = ConsoleColor.Yellow;
diff --git a/System/FileSystem.cs b/System/FileSystem.cs
index e72c797..145bd08 100644
--- a/System/FileSystem.cs
+++ b/System/FileSystem.cs
@@ -2,12 +2,14 @@ using CosmosFtpServer;
 using System;
 using System.Collections.Generic;
 using System.IO;
+using CMLeonOS.Logger;
 
 namespace CMLeonOS
 {
     public class FileSystem
     {
         private string currentDirectory;
+        private static CMLeonOS.Logger.Logger _logger = CMLeonOS.Logger.Logger.Instance;
 
         public FileSystem()
         {
@@ -24,9 +26,9 @@ namespace CMLeonOS
             if (string.IsNullOrEmpty(path))
             {
                 currentDirectory = @"0:\";
+                _logger.Info("FileSystem", "Changed to root directory");
                 return;
             }
-
             string fullPath = GetFullPath(path);
             
             try
@@ -34,15 +36,16 @@ namespace CMLeonOS
                 if (Directory.Exists(fullPath))
                 {
                     currentDirectory = fullPath;
+                    _logger.Info("FileSystem", $"Changed directory to: {path}");
                 }
                 else
                 {
-                    Console.WriteLine($"Directory not found: {path}");
+                    _logger.Warning("FileSystem", $"Directory not found: {path}");
                 }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error changing directory: {ex.Message}");
+                _logger.Error("FileSystem", $"Error changing directory: {ex.Message}");
             }
         }
 
@@ -55,16 +58,16 @@ namespace CMLeonOS
                 if (!Directory.Exists(fullPath))
                 {
                     Directory.CreateDirectory(fullPath);
-                    Console.WriteLine($"Directory created: {path}");
+                    _logger.Info("FileSystem", $"Directory created: {path}");
                 }
                 else
                 {
-                    Console.WriteLine($"Directory already exists: {path}");
+                    _logger.Warning("FileSystem", $"Directory already exists: {path}");
                 }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error creating directory: {ex.Message}");
+                _logger.Error("FileSystem", $"Error creating directory: {ex.Message}");
             }
         }
 
@@ -230,11 +233,11 @@ namespace CMLeonOS
             {
                 // 创建或覆盖文件
                 File.WriteAllText(fullPath, content);
-                Console.WriteLine($"File created: {path}");
+                _logger.Info("FileSystem", $"File created: {path}");
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error creating file: {ex.Message}");
+                _logger.Error("FileSystem", $"Error creating file: {ex.Message}");
             }
         }
 
@@ -247,16 +250,16 @@ namespace CMLeonOS
                 if (File.Exists(fullPath))
                 {
                     File.WriteAllText(fullPath, content);
-                    Console.WriteLine($"File written: {path}");
+                    _logger.Info("FileSystem", $"File written: {path}");
                 }
                 else
                 {
-                    Console.WriteLine($"File not found: {path}");
+                    _logger.Warning("FileSystem", $"File not found: {path}");
                 }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error writing file: {ex.Message}");
+                _logger.Error("FileSystem", $"Error writing file: {ex.Message}");
             }
         }
 
diff --git a/System/UserSystem.cs b/System/UserSystem.cs
index a2bb656..401f711 100644
--- a/System/UserSystem.cs
+++ b/System/UserSystem.cs
@@ -5,6 +5,7 @@ using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading;
 using Sys = Cosmos.System;
+using CMLeonOS.Logger;
 
 namespace CMLeonOS
 {
@@ -23,19 +24,16 @@ namespace CMLeonOS
         private List<User> users;
         public bool fixmode = Kernel.FixMode;
         private User currentLoggedInUser;
+        private static CMLeonOS.Logger.Logger _logger = CMLeonOS.Logger.Logger.Instance;
 
         public void ShowError(string error)
         {
-            Console.ForegroundColor = ConsoleColor.Red;
-            Console.WriteLine($"{error}");
-            Console.ResetColor();
+            _logger.Error("UserSystem", error);
         }
 
         public void ShowSuccess(string message)
         {
-            Console.ForegroundColor = ConsoleColor.Green;
-            Console.WriteLine($"{message}");
-            Console.ResetColor();
+            _logger.Success("UserSystem", message);
         }
 
         public static string HashPasswordSha256(string password)
@@ -59,6 +57,7 @@ namespace CMLeonOS
             LoadUsers();
             
             LoadHostname();
+            _logger.Success("UserSystem", "User system initialized successfully");
         }
 
         private void EnsureSysDirectoryExists()
@@ -267,6 +266,7 @@ namespace CMLeonOS
 
         public void FirstTimeSetup()
         {
+            _logger.Info("UserSystem", "Starting first time setup");
             Console.WriteLine("====================================");
             Console.WriteLine("        First Time Setup");
             Console.WriteLine("====================================");
@@ -320,6 +320,7 @@ namespace CMLeonOS
                 users.Add(adminUser);
                 SaveUsers();
                 ShowSuccess("Admin user created successfully!");
+                _logger.Info("UserSystem", $"Admin user '{username}' created");
                 
                 Console.WriteLine();
                 Console.WriteLine("Please set system hostname:");
@@ -338,6 +339,7 @@ namespace CMLeonOS
                     users[0].Hostname = hostname;
                     SaveHostname();
                     ShowSuccess($"Hostname set to: {hostname}");
+                    _logger.Info("UserSystem", $"Hostname set to: {hostname}");
                 }
                 
                 Console.WriteLine();
@@ -356,6 +358,7 @@ namespace CMLeonOS
             }
             catch (Exception ex)
             {
+                _logger.Error("UserSystem", $"Error creating admin user: {ex.Message}");
                 ShowError($"Error creating admin user: {ex.Message}");
             }
         }
@@ -388,6 +391,7 @@ namespace CMLeonOS
 
         public bool Login()
         {
+            _logger.Info("UserSystem", "Starting login process");
             Console.WriteLine("====================================");
             Console.WriteLine("          System Login");
             Console.WriteLine("====================================");
@@ -406,6 +410,7 @@ namespace CMLeonOS
                         useFixMode = true;
                         Console.WriteLine();
                         Console.WriteLine("Fix Mode Activated");
+                        _logger.Warning("UserSystem", "Fix mode activated");
                         Console.Write("Enter fix code: ");
                         
                         string fixCode = "";
@@ -434,10 +439,12 @@ namespace CMLeonOS
                         if (fixCode == "FixMyComputer")
                         {
                             Console.WriteLine("Fix mode enabled!");
+                            _logger.Info("UserSystem", "Fix mode enabled with correct code");
                         }
                         else
                         {
                             Console.WriteLine("Invalid fix code. Exiting fix mode.");
+                            _logger.Warning("UserSystem", "Invalid fix code provided");
                             useFixMode = false;
                         }
                     }
@@ -471,6 +478,7 @@ namespace CMLeonOS
                     if (foundUser == null)
                     {
                         ShowError("User not found.");
+                        _logger.Warning("UserSystem", $"Login failed: User '{username}' not found");
                         return false;
                     }
                     
@@ -482,10 +490,12 @@ namespace CMLeonOS
                     if (foundUser.Password != hashedInputPassword)
                     {
                         ShowError("Invalid password.");
+                        _logger.Warning("UserSystem", $"Login failed: Invalid password for user '{username}'");
                         return false;
                     }
                     
                     ShowSuccess("Login successful!");
+                    _logger.Info("UserSystem", $"User '{username}' logged in successfully");
                     Console.Beep();
                     
                     // 设置当前登录用户
@@ -501,12 +511,14 @@ namespace CMLeonOS
             {
                 // 如果读取按键失败，使用普通登录
                 ShowError("Error reading key input. Using normal login.");
+                _logger.Error("UserSystem", "Error reading key input during login");
                 return false;
             }
             
             // 如果使用了修复模式，返回true
             if (useFixMode)
             {
+                _logger.Info("UserSystem", "Login bypassed via fix mode");
                 return true;
             }
             
@@ -515,6 +527,7 @@ namespace CMLeonOS
 
         public bool AddUser(string args, bool isAdmin)
         {
+            _logger.Info("UserSystem", $"Starting to add {(isAdmin ? "admin" : "user")}");
             Console.WriteLine("====================================");
             Console.WriteLine($"        Add {(isAdmin ? "Admin" : "User")}");
             Console.WriteLine("====================================");
@@ -536,6 +549,7 @@ namespace CMLeonOS
                 if (user.Username.ToLower() == username.ToLower())
                 {
                     ShowError($"Error: User '{username}' already exists.");
+                    _logger.Warning("UserSystem", $"Add user failed: User '{username}' already exists");
                     return false;
                 }
             }
@@ -556,11 +570,13 @@ namespace CMLeonOS
 
                 ShowSuccess($"{(isAdmin ? "Admin" : "User")} '{username}' created successfully!");
                 ShowSuccess("You shall restart the system to apply the changes.");
+                _logger.Info("UserSystem", $"{(isAdmin ? "Admin" : "User")} '{username}' created successfully");
                 
                 return true;
             }
             catch (Exception ex)
             {
+                _logger.Error("UserSystem", $"Error adding user: {ex.Message}");
                 ShowError($"Error adding user: {ex.Message}");
                 return false;
             }
@@ -568,6 +584,7 @@ namespace CMLeonOS
 
         public bool DeleteUser(string username)
         {
+            _logger.Info("UserSystem", $"Starting to delete user '{username}'");
             Console.WriteLine("====================================");
             Console.WriteLine("        Delete User");
             Console.WriteLine("====================================");
@@ -593,6 +610,7 @@ namespace CMLeonOS
             if (foundUser == null)
             {
                 ShowError($"Error: User '{username}' not found.");
+                _logger.Warning("UserSystem", $"Delete user failed: User '{username}' not found");
                 return false;
             }
             
@@ -609,6 +627,7 @@ namespace CMLeonOS
             if (foundUser.IsAdmin && adminCount <= 1)
             {
                 ShowError("Error: Cannot delete the last admin user.");
+                _logger.Warning("UserSystem", "Delete user failed: Cannot delete the last admin user");
                 return false;
             }
             
@@ -617,10 +636,12 @@ namespace CMLeonOS
                 users.Remove(foundUser);
                 SaveUsers();
                 ShowSuccess($"User '{username}' deleted successfully!");
+                _logger.Info("UserSystem", $"User '{username}' deleted successfully");
                 return true;
             }
             catch (Exception ex)
             {
+                _logger.Error("UserSystem", $"Error deleting user: {ex.Message}");
                 ShowError($"Error deleting user: {ex.Message}");
                 return false;
             }
diff --git a/utils/EnvironmentVariableManager.cs b/utils/EnvironmentVariableManager.cs
index e8b13d8..154a956 100644
--- a/utils/EnvironmentVariableManager.cs
+++ b/utils/EnvironmentVariableManager.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using CMLeonOS.Logger;
 
 namespace CMLeonOS
 {
@@ -9,6 +10,7 @@ namespace CMLeonOS
         private static EnvironmentVariableManager instance;
         private string envFilePath = @"0:\system\env.dat";
         private Dictionary<string, string> environmentVariables;
+        private static CMLeonOS.Logger.Logger _logger = CMLeonOS.Logger.Logger.Instance;
 
         private EnvironmentVariableManager()
         {
@@ -45,11 +47,12 @@ namespace CMLeonOS
                             environmentVariables[varName] = varValue;
                         }
                     }
+                    _logger.Info("EnvManager", $"Loaded {environmentVariables.Count} environment variables from file");
                 }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error loading environment variables: {ex.Message}");
+                _logger.Error("EnvManager", $"Error loading environment variables: {ex.Message}");
             }
         }
 
@@ -57,8 +60,7 @@ namespace CMLeonOS
         {
             try
             {
-                Console.WriteLine($"Saving environment variables to: {envFilePath}");
-                Console.WriteLine($"Variables to save: {environmentVariables.Count}");
+                _logger.Info("EnvManager", $"Saving {environmentVariables.Count} environment variables to file");
                 
                 // 构建文件内容
                 string content = "";
@@ -67,9 +69,6 @@ namespace CMLeonOS
                     content += $"{kvp.Key}={kvp.Value}\n";
                 }
                 
-                Console.WriteLine("Environment variables content:");
-                Console.WriteLine(content);
-                
                 // 使用FileSystem的WriteFile方法来确保在Cosmos中正常工作
                 // 注意：这里需要访问FileSystem实例，但EnvironmentVariableManager是独立的
                 // 所以我们使用File.WriteAllText，但添加重试机制
@@ -83,25 +82,23 @@ namespace CMLeonOS
                     {
                         File.WriteAllText(envFilePath, content);
                         success = true;
-                        Console.WriteLine("Environment variables saved successfully.");
+                        _logger.Info("EnvManager", "Environment variables saved successfully");
                     }
                     catch (Exception ex)
                     {
                         retryCount++;
-                        Console.WriteLine($"Save attempt {retryCount} failed: {ex.Message}");
-                        // Thread.Sleep(1000); // 等待1秒后重试
+                        _logger.Warning("EnvManager", $"Save attempt {retryCount} failed: {ex.Message}");
                     }
                 }
                 
                 if (!success)
                 {
-                    Console.WriteLine("Failed to save environment variables after 3 attempts.");
+                    _logger.Error("EnvManager", "Failed to save environment variables after 3 attempts");
                 }
             }
             catch (Exception ex)
             {
-                Console.WriteLine($"Error saving environment variables: {ex.Message}");
-                Console.WriteLine($"Exception type: {ex.GetType().Name}");
+                _logger.Error("EnvManager", $"Error saving environment variables: {ex.Message}");
             }
         }
 
@@ -109,13 +106,13 @@ namespace CMLeonOS
         {
             if (string.IsNullOrWhiteSpace(varName))
             {
+                _logger.Warning("EnvManager", "Variable name cannot be empty");
                 Console.WriteLine("Error: Variable name cannot be empty");
                 return false;
             }
-
+            
             environmentVariables[varName] = varValue;
             SaveEnvironmentVariables();
-            Console.WriteLine($"Environment variable '{varName}' set to '{varValue}'");
             return true;
         }
 
@@ -136,20 +133,15 @@ namespace CMLeonOS
         {
             if (environmentVariables.Count == 0)
             {
-                Console.WriteLine("No environment variables set.");
+                _logger.Info("EnvManager", "No environment variables set");
             }
             else
             {
-                Console.WriteLine("====================================");
-                Console.WriteLine("        Environment Variables");
-                Console.WriteLine("====================================");
-                Console.WriteLine();
+                _logger.Info("EnvManager", $"Listing {environmentVariables.Count} environment variables");
                 foreach (var kvp in environmentVariables)
                 {
-                    Console.WriteLine($"  {kvp.Key}={kvp.Value}");
+                    _logger.Info("EnvManager", $"  {kvp.Key}={kvp.Value}");
                 }
-                Console.WriteLine();
-                Console.WriteLine($"Total: {environmentVariables.Count} variables");
             }
         }
 
@@ -159,12 +151,12 @@ namespace CMLeonOS
             {
                 environmentVariables.Remove(varName);
                 SaveEnvironmentVariables();
-                Console.WriteLine($"Environment variable '{varName}' deleted");
+                _logger.Info("EnvManager", $"Environment variable '{varName}' deleted");
                 return true;
             }
             else
             {
-                Console.WriteLine($"Error: Environment variable '{varName}' not found");
+                _logger.Warning("EnvManager", $"Environment variable '{varName}' not found");
                 return false;
             }
         }