diff --git a/dislocker_auth.py b/dislocker_auth.py
index 0f1472e..04a47e3 100644
--- a/dislocker_auth.py
+++ b/dislocker_auth.py
@@ -307,18 +307,29 @@ class Auth():
             cursor.execute("SELECT pc_uuid FROM pc_list WHERE pc_number = %s", (pc_number,))
             pc_record = cursor.fetchall()
             pc_record_uuid = pc_record[0][0]
-            if pc_record_uuid == None:
+            cursor.execute("SELECT pc_number FROM pc_list WHERE pc_number = %s", (pc_number,))
+            pc_record = cursor.fetchall()
+            pc_record_number = pc_record[0][0]
+            if pc_record_number == None:
                 pc_token = self.token_generate(36)
                 master_password = self.master_password_generate(16)
                 master_password_hash = self.hash_genarate(master_password)
-                cursor.execute("UPDATE pc_list SET pc_uuid = %s, pc_token = %s, master_password = %s WHERE pc_number = %s", (pc_uuid, pc_token, master_password, pc_number))
+                cursor.execute("INSERT INTO pc_list (pc_number, pc_uuid, pc_token, master_password) VALUES (%s, %s, %s, %s)", (pc_number, pc_uuid, pc_token, master_password))
                 self.db.commit()
                 return {"result": 0, "about": "ok", "output_dict": {"pc_token": pc_token, "master_password": master_password, "master_password_hash": master_password_hash}}
             else:
-                return {"result": 1, "about": "exist"}
+                if pc_record_uuid == None:
+                    pc_token = self.token_generate(36)
+                    master_password = self.master_password_generate(16)
+                    master_password_hash = self.hash_genarate(master_password)
+                    cursor.execute("UPDATE pc_list SET pc_uuid = %s, pc_token = %s, master_password = %s WHERE pc_number = %s", (pc_uuid, pc_token, master_password, pc_number))
+                    self.db.commit()
+                    return {"result": 0, "about": "ok", "output_dict": {"pc_token": pc_token, "master_password": master_password, "master_password_hash": master_password_hash}}
+                else:
+                    return {"result": 1, "about": "exist"}
             
         except Exception as error:
-            print("停止処理中にエラーが発生しました。\nエラー内容")
+            print("PCの登録処理中にエラーが発生しました。\nエラー内容")
             print(str(error.__class__.__name__))
             print(str(error.args))
             print(str(error))