To solve the U disk is not a virtual machine identification problem has a trick

1, we first run the virtual machine, and then view the "Toolbar" – "VM" – "Settings" – "Hardware", check the "Device" column has no "USB Controller", if not add a. If so, then we continue to click on it and see if all the right side is checked, as shown in the following figure:

If the third item is gray, there is no way to check, that is because the USB port is not enough, in other virtual machine system used up, at this time we can open a other virtual machine system, by setting the inside "USB Controller" Change to "remove", Then in the original virtual machine system, re-add to build a USB Controller, and the three options are checked, and finally click OK, reboot the system!

2, restart the system if the virtual machine prompts: "Host USB device connections disabled." The detailed hints are as follows:

The connection to the VMware USB arbitration Service is unsuccessful. Please check the status of this service in the Microsoft Management Console.

The reason is that "VMware USB arbitration Service" is not turned on on the native system

Workaround: In the Win7 operating system, right click on the computer, click the Management-> service and Application-> service, find "VMware USB Arbitration Service", right-click, start. As shown in the following illustration:

3, restart the virtual operating system again, we can see the desktop in the lower right corner of the USB logo, as shown in the following image:

Finally, we use the mouse to click on this logo, and then select "Connect", insert a U disk can be identified. As shown in the following illustration: