Windows 键盘问题一例

今天打开电脑，进入Windows，登陆时竟然发现键盘不能用！冷静了一下后用软键盘登了，登陆后发现还是不行！

于是用鼠标和软键盘操作，看Device Manager,键盘设备有个黄叹号，设备状态里显示

Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged (code 19)

Google之，在http://www.edmartechguide.com/2009/02/windows-cannot-start-this-hardware.html里得到线索

于是进入Regedit，在HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class项下逐个检查，直到找到{4D36E96B-E325-11CE-BFC1-08002BE10318}，发现Class值是Keyboard，那么应该就是这项了

由于权限问题，改名和删除都不行，于是仔细观察各项，发现"UpperFilters"里有个可疑的alidevice，于是删掉，把"kbdclass alidevice"改成"kbdclass"

然后去Device Manager里Uninstall键盘设备，然后刷进，于是可以用了。

这样看来，应该是淘宝的驱动挂了，或者是让我搞挂了。

另外是Device Manager里的PS/2鼠标也不能用，这里是我笔记本上的触摸板。我用的鼠标是USB的，不过注册表里没有发现可疑项，重启以后自然能用了。

另外庆幸我的USB鼠标还能工作，否则输入设备一个都没了。。。好险

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