百度找了下都是莫名其妙的自动好了,可以查看这个帖子:诡异的JS,已经计划系统关机错误。
于是改用谷歌搜索相关英文内容,serverfault.com上也有人碰到过这个问题,满意答案还比较靠谱:IE8 script error 800704a6?
代码如下:
The only information I've been able to find on this error is from Josh Poley's MSDN blog.(这篇msdn上的文章已经不存在)
1190 0x800704A6 A system shutdown has already been scheduled. ERROR_SHUTDOWN_IS_SCHEDULED
However, the message implies that you get this when trying to schedule a shutdown. The only thing I can think of is that an installation/Windows update is waiting for a reboot.
You say that you can't see updates in Add/Remove programs - have you checked the "Show updates" option is checked?
Other posts that mention this error are similar in nature to yours.
主要说的是系统更新或者安装过相关的软件或者补丁,需要重启动后才能生效。所以上面那篇csdn的这个错误也是解决得莫名其妙了,应该是重启过电脑。