Warning: Use of undefined constant title - assumed 'title' (this will throw an Error in a future version of PHP) in /data/www.zhuangjiba.com/web/e/data/tmp/tempnews1.php on line 152 usb无法识别,详细教您解决usb无法识别
- 分类:win8 发布时间: Warning: Use of undefined constant newstime - assumed 'newstime' (this will throw an Error in a future version of PHP) in /data/www.zhuangjiba.com/web/e/data/tmp/tempnews1.php on line 156 2017年11月11日 10:02:36
不少人在电脑使用过程中,在插入u盘、移动硬盘、u口的鼠标或键盘后,会出现usb驱动无法设别提示,直接导致设备不能使用。我们知道,电脑和外部设备相连接,就只能靠usb接口,那么该怎么去解决usb无法识别的情况的呢?下面,小编就跟大家说说解决usb无法识别的方法。
usb无法识别怎么办?首先如果是初次在一台电脑上,当出现usb无法识别的时候,需要做的是分析清楚到底是usb设备产品的问题还是电脑或线路的问题以及是否存在驱动问题。当以前使用过该usb设备,现在不可以用的话,驱动问题就可以简单的排除掉。具体的操作如下。
usb无法识别
首先需要将USB设备插入到计算机USB接口
点击电脑的“开始”菜单,点击“运行”,在输入框中输入“cmd”,点击“确定”。
usb电脑图解-1
在命令提示符窗口内分别执行下面两条命令:
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v "DEVMGR_SHOW_DETAILS" /d 1 /t REG_SZ /f
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v"DEVMGR_SHOW_NONPRESENT_DEVICES" /d 1 /t REG_SZ /f
usb电脑图解-2
重启电脑,点击“开始”菜单,打开“运行”,输入“devmgmt.msc”,点击“确定”按钮
usb识别电脑图解-3
或者右击桌面上“我的电脑”,在弹出的快捷菜单中选择“属性”,点击“硬件”选项卡,然后点击下面的“设备管理器”按钮。
usb识别电脑图解-4
打开设备管理器,在菜单栏点击“查看” - “显示隐藏的设备”。
usb识别电脑图解-5
双击“通用串行总线控制器”项目,将所显示的灰色项目和USB大容量存储设备卸载掉。
无法识别电脑图解-6
右键点击“通用串行总线控制器”项目,在弹出的下拉菜单中选择“扫描检查硬件改动”。
usb设备电脑图解-7
拔掉USB设备,再重新插上,看是否已经OK。
usb电脑图解-8
若重新插入还是没好,则右键点击“通用串行总线控制器”下的“USB Root Hub”项目,点击“属性”。
无法识别电脑图解-9
在打开的也窗口中点击“电源管理”选项卡,去掉“允许计算机关闭此设备以节约电源”,点击“确定”按钮(依次对每个USB Root Hub的属性进行修改)。
usb电脑图解-10
关于usb无法识别的办法就讲述到这里了。
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