In the Win7 system, when the mobile hard disk is to be quit, it always prompts how the device is being used.

Cause analysis:
It may be that the program is interacting with the win7 system, for example, some data in the mobile hard disk remains in the Win7 system. In the board, or anti-virus software is killing viruses on its own.
The specific steps are as follows:
1, first right click on the computer on the win7 system desktop to select "properties" option;
2, click on the open computer properties window <; device manager & rdquo; , and then click "Disk Drive" to find the corresponding mobile hard disk item, such as Xiaobian here is selected "TOSHIBA TransMemory USB Device", and then double-click to open;
3, in the TOSHIBA TransMemory USB Device Properties window , switch to the "Policy" tab, click on the "Quick delete (default) & rdquo; item, click the <; OK & rdquo; button on it.