How to solve the problem that the win7 virtual machine cannot recognize the U disk

1. First run the virtual machine, and then click to view <;Toolbar--VM--“Settings--Hardware”, then check if there is any "USB Controller" in the "Device” column, if not ADD then add one, if you continue to click on it, then check whether the right side is all checked, as shown below;

2, if you see the third item is gray can not be selected, The reason is because the USB port is not enough, it is used up in other virtual machine systems, so at this time we can open a different virtual machine system, and then change the inside "USB Controller" to "ldove" and then remove Go back to the original virtual machine system, re-create a USB Controller, and check all three options, and finally click ok to restart the computer;

3. If the virtual machine prompts after restarting the system: “Host USB device connections disabled”, the detailed prompt code is as follows:

The connection to the VMware USB Arbitration Serv Ice was unsuccessful. Please check the status of this service in the Microsoft Management Console.

Cause Analysis: The reason for this is because the VMware USB Arbitration Service is not turned on on the local system.

Solution: In the Win7 operating system, right click on the computer to select the management option, in the open management interface, expand “services and applications--services, then find and right click “ VMware USB Arbitration Service” item, then select Start.

4, then restart the virtual operating system again, then we can see the USB logo in the lower right corner of the desktop.

5, the last mouse click on this flag, and then select "connect", insert the U disk can be identified.