故障现象： 电脑和打印机都连接在同一个路由器，台式电脑通过有线连接到路由器，打印机通过无线连接到 路由器，之前设置好无线打印工作正常&#xf

上网机被自动安装了各种垃圾，启动时太慢了。怎么办？恢复系统。HP电脑： 做好备份。搜索：Recovery Manager，选择&

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