diff --git a/Editor/3rds/UnityHook/LDasm.cs b/Editor/3rds/UnityHook/LDasm.cs
index d766e66..d87ab91 100644
--- a/Editor/3rds/UnityHook/LDasm.cs
+++ b/Editor/3rds/UnityHook/LDasm.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.InteropServices;
 
 namespace DotNetDetour
 {
@@ -641,15 +642,8 @@ namespace DotNetDetour
             if(s_isArm.HasValue)
                 return s_isArm.Value;
 
-            string processorType = UnityEngine.SystemInfo.processorType;
-
-            /*
-             * appple M 系列
-             * SystemInfo.processorType 返回值为: Apple M1 Max, Apple M2 等
-             * SystemInfo.operatingSystem 返回值为: Mac OS X xx.x.x
-             * 
-             */
-            s_isArm = processorType.Contains("ARM") || processorType.Contains("Apple M");
+            var arch = RuntimeInformation.ProcessArchitecture;
+            s_isArm = arch == Architecture.Arm || arch == Architecture.Arm64;
 
             return s_isArm.Value;
         }
diff --git a/Editor/3rds/UnityHook/MethodHook.cs b/Editor/3rds/UnityHook/MethodHook.cs
index f128c85..2c7c862 100644
--- a/Editor/3rds/UnityHook/MethodHook.cs
+++ b/Editor/3rds/UnityHook/MethodHook.cs
@@ -363,8 +363,14 @@ namespace MonoHook
         {
             if (s_fi_GUISkin_current.GetValue(null) != null)
             {
-                DoInstall();
-                EditorApplication.update -= OnEditorUpdate;
+                try
+                {
+                    DoInstall();
+                }
+                finally
+                {
+                    EditorApplication.update -= OnEditorUpdate;
+                }
             }
         }
 #endif