Unknown Device in universal serial bus

can some one help me
i have problem with my device its always say uknow device

-i have tried uninstaling and instaling device
-i have use another usb port
-i have tried to update the device

can anyone help me

Did you install the drivers?
DWA-127 Wireless N 150 High-Gain USB Adapter | D-Link UK

Megahertz07 said:

Did you install the drivers?
DWA-127 Wireless N 150 High-Gain USB Adapter | D-Link UK

yes,iam trying uninstall and install but when i install the driver
this happened
(iam plugged the device but it is uknown device)

i would suggest you remove everything below the Intel host controllers, the system will automatically replace them. then update the host controllers REBOOT. try the device drivers.

NOTE
Based on your system specs your comp is way under spec and will run like a tub of mollasses suggest you install 32 bit version

torchwood said:

i would suggest you remove everything below the Intel host controllers, the system will automatically replace them. then update the host controllers REBOOT. try the device drivers.

NOTE
Based on your system specs your comp is way under spec and will run like a tub of mollasses suggest you install 32 bit version

Do you mean installing the 32 bit driver version?, and installing and uninstalling the host is no different