Reasons and countermeasures of unable to search for wireless signal after reloading Win7 system

1th: It could be that we forgot to upgrade the wireless driver in the computer system when we reload the computer system, and our computer can't access the Internet without the support of the wireless driver.

Response measures: Download a driver wizard, a key detection, and then a key to install the missing network card driver, or we directly to the computer corresponding to the brand official website to download the network card driver, and then install on it.

2nd: It is possible that our computer itself has an unlimited network program switch, we do not turn on this switch, so unlimited network can not be used.

Should be more measures: the general computer has such a shortcut key, such as Fn+xx key, this need according to the computer brand to Baidu under.