Remove old UI and do lots of cleanup

MCPForUnity/Editor/Dependencies/DependencyManager.cs

@@ -126,7 +126,7 @@ private static void GenerateRecommendations(DependencyCheckResult result, IPlatf
             {
                 if (dep.Name == "Python")
                 {
-                    result.RecommendedActions.Add($"Install Python 3.10+ from: {detector.GetPythonInstallUrl()}");
+                    result.RecommendedActions.Add($"Install Python 3.11+ from: {detector.GetPythonInstallUrl()}");
                 }
                 else if (dep.Name == "UV Package Manager")
                 {

MCPForUnity/Editor/Dependencies/PlatformDetectors/LinuxPlatformDetector.cs

@@ -62,7 +62,7 @@ public override DependencyStatus DetectPython()
                     }
                 }
 
-                status.ErrorMessage = "Python not found. Please install Python 3.10 or later.";
+                status.ErrorMessage = "Python not found. Please install Python 3.11 or later.";
                 status.Details = "Checked common installation paths including system, snap, and user-local locations.";
             }
             catch (Exception ex)
@@ -144,10 +144,10 @@ private bool TryValidatePython(string pythonPath, out string version, out string
                     version = output.Substring(7); // Remove "Python " prefix
                     fullPath = pythonPath;
 
-                    // Validate minimum version (Python 4+ or Python 3.10+)
+                    // Validate minimum version (Python 4+ or Python 3.11+)
                     if (TryParseVersion(version, out var major, out var minor))
                     {
-                        return major > 3 || (major >= 3 && minor >= 10);
+                        return major > 3 || (major >= 3 && minor >= 11);
                     }
                 }
             }

MCPForUnity/Editor/Dependencies/PlatformDetectors/MacOSPlatformDetector.cs

@@ -35,8 +35,7 @@ public override DependencyStatus DetectPython()
                     "/opt/homebrew/bin/python3",
                     "/Library/Frameworks/Python.framework/Versions/3.13/bin/python3",
                     "/Library/Frameworks/Python.framework/Versions/3.12/bin/python3",
-                    "/Library/Frameworks/Python.framework/Versions/3.11/bin/python3",
-                    "/Library/Frameworks/Python.framework/Versions/3.10/bin/python3"
+                    "/Library/Frameworks/Python.framework/Versions/3.11/bin/python3"
                 };
 
                 foreach (var candidate in candidates)
@@ -65,7 +64,7 @@ public override DependencyStatus DetectPython()
                     }
                 }
 
-                status.ErrorMessage = "Python not found. Please install Python 3.10 or later.";
+                status.ErrorMessage = "Python not found. Please install Python 3.11 or later.";
                 status.Details = "Checked common installation paths including Homebrew, Framework, and system locations.";
             }
             catch (Exception ex)
@@ -144,10 +143,10 @@ private bool TryValidatePython(string pythonPath, out string version, out string
                     version = output.Substring(7); // Remove "Python " prefix
                     fullPath = pythonPath;
 
-                    // Validate minimum version (Python 4+ or Python 3.10+)
+                    // Validate minimum version (Python 4+ or Python 3.11+)
                     if (TryParseVersion(version, out var major, out var minor))
                     {
-                        return major > 3 || (major >= 3 && minor >= 10);
+                        return major > 3 || (major >= 3 && minor >= 11);
                     }
                 }
             }

MCPForUnity/Editor/Dependencies/PlatformDetectors/WindowsPlatformDetector.cs

@@ -68,7 +68,7 @@ public override DependencyStatus DetectPython()
                     }
                 }
 
-                status.ErrorMessage = "Python not found. Please install Python 3.10 or later.";
+                status.ErrorMessage = "Python not found. Please install Python 3.11 or later.";
                 status.Details = "Checked common installation paths and PATH environment variable.";
             }
             catch (Exception ex)
@@ -132,10 +132,10 @@ private bool TryValidatePython(string pythonPath, out string version, out string
                     version = output.Substring(7); // Remove "Python " prefix
                     fullPath = pythonPath;
 
-                    // Validate minimum version (Python 4+ or Python 3.10+)
+                    // Validate minimum version (Python 4+ or Python 3.11+)
                     if (TryParseVersion(version, out var major, out var minor))
                     {
-                        return major > 3 || (major >= 3 && minor >= 10);
+                        return major > 3 || (major >= 3 && minor >= 11);
                     }
                 }
             }

MCPForUnity/Editor/Helpers/CodexConfigHelper.cs

@@ -3,6 +3,7 @@
 using System.IO;
 using System.Linq;
 using MCPForUnity.External.Tommy;
+using MCPForUnity.Editor.Services;
 
 namespace MCPForUnity.Editor.Helpers
 {
@@ -137,6 +138,16 @@ private static TomlTable CreateUnityMcpTable(string uvPath, string serverSrc)
             argsArray.Add(new TomlString { Value = "server.py" });
             unityMCP["args"] = argsArray;
 
+            // Add Windows-specific environment configuration, see: https://github.com/CoplayDev/unity-mcp/issues/315
+            var platformService = MCPServiceLocator.Platform;
+            if (platformService.IsWindows())
+            {
+                var envTable = new TomlTable();
+                string systemRoot = platformService.GetSystemRoot();
+                envTable["SystemRoot"] = new TomlString { Value = systemRoot };
+                unityMCP["env"] = envTable;
+            }
+
             return unityMCP;
         }