win强制重新识别usb设备 win无法识别usb设备不重新插拔设备

步骤

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P7bZSAS&l=zh-CN

• 通过设备管理器找到无法识别的usb设备连接到的根集线器

  • 设备管理器-通用串行总线xxx，会看到多个根集线器，双击-power，查看设备列表找设备
    • 如果只有一个根集线器，那就是它
  • 确定是哪个根集线器之后，双击-详细信息-属性-设备实例路径

• 用devcon工具来执行重新识别

devcon的替代工具PnPUtil（win系统自带）

不过，下载devcon的界面建议用PnPUtil来代替devcon

PnPUtil ships with every release of Windows and makes use of the most reliable and secure APIs available and its use is recommended. For more information on using PnPutil instead of devcon, see Replacing DevCon.

PnPUtil is an inbox tool that allows the user to view information on and change the state of devices and drivers. See PnPUtil for an in-depth usage guide.

PnPUtil is included in the %windir%\system32 directory of every version of Windows Vista and later. There isn’t a separate PnPUtil download package.

• Open a Command Prompt window (Run as administrator).
• Type pnputil /? to view command options. See PnPUtil Command Syntax for more information.

PnPUtil常用命令

重启设备:
pnputil /restart-device “USB\VID_045E&PID_00DB\6&870CE29&0&1”