Normally, when we insert a USB device in our computer, the icon for the security removal hardware appears on the tray in the lower right corner of the computer. But what do we do when we encounter a USB device that does not show the safe removal of hardware?
The security removal hardware is to stop powering the USB device when the USB device and the computer determine that no data is exchanged. If not safely removed, directly unplug the USB device, it will cause damage to the USB device, at this time to have data transmission will also cause damage, so the safe removal of hardware is very necessary.
Method One:
Type devmgmt.msc in the Run dialog box, and enter to open the Device Manager. Under disk drives, locate the Generic Flash USB Device option.
Right-click Generic Flash USB Device, select Properties, and open the Properties window. Then open the Policy tab, select optimize for performance, and click OK. Reseat the USB device once, and the "Safely Remove Hardware" icon should appear.
Method Two:
Click start → run, type the "C:windowssystem32systray.exe" command in the dialog box, enter execute, unplug the USB device, and see if the icon appears.
If the above steps still cannot retrieve the deleted U disk hardware icon. We continue to open the Run dialog box, type "regedit", and enter to open Registry Editor. Expand the following registry file sequentially: [Hkey_current_usersoftwaremicrosoftwindowscurrentversionrun], right-click it, create a new string value named "Systray.exe", and then double-click it, Change its value to "C:windows system32 Systray.exe", and then exit after Registry Editor.
Method Three:
In Run, type "Sfc/scannow", enter, the system will automatically scan the system files, when prompted to insert the Windows installation CD to insert the CD into the CD drive, after the repair is complete, restart the computer.
Method Four:
If still not, it is recommended to reinstall the USB port driver, will not reinstall the USB port driver can be directly used to reinstall the motherboard driver method to reinstall the USB port.