Notebook can not be on the net, in addition to the network card driver update, there may be a network card closed, most laptops have a physical switch with the network card, but also from the BIOS on or off the network card, physical switch is not more introduced, the culture and education how to open and close the Win7 pure version of the
1, restart the computer, in the boot process constantly press Del (different computer into the BIOS method is not the same), into the BIOS;
2, after entering the BIOS select "Device" under the "Network Setup" option;
3, then select "Onboard Ethermet Controller", click Enter, select "Enabled", click Enter again;
4, complete all the above operations, press F10, in the pop-up dialog box select Yes and click Enter to save.
After the reboot, the ghost Win7 Nic is turned on, if you want to turn off the NIC again and again to operate. It should be noted that different brands of computers may enter the BIOS method is not the same!bios interface is not the same, as long as the selection of options to operate.