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windows下光驱消失

参见：http://www.qi168.com/?108/action_viewspace_itemid_10212.html

我的情况是装了Daemon Tools，且前一阵子手工杀毒时删了很多东西（宁可错删一百，不能漏删一个），估计删了重要文件

尝试卸载--重新搜索，不行
到处搜驱动，没有
windows设备管理器说驱动程序损坏或丢失
用filemon查看，似乎是找不到ubhelper.sys，这正是前一阵子我手工删的，理由是它没有文件信息（如公司，版本之类）
在网上查ubhelper.sys，有的说是病毒，有的说不是，弄得我一头雾水，问了好多朋友都说没这个文件
绝望之际发现了上面的网址，问题得以解决。不过不同的是，我这的两个注册表项叫“upperfilters”项和“loweverfilters”，而且可以看到，项值恰为ubhelper.sys

总结：
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11C E-BFC1-08002BE10318} 删除“upperfilters”项和“loweverfilters”项,然后卸载-重新搜索光驱
此外，ubhelper.sys也许真的是木马
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