I reinstalled windows 7 on a laptop, and can't get wifi to work?

after windows 7 install you checking computer device manager still yellow icon 
and some time windows 7 install finished time automatically off you checking you laptop 
led lights more win 7 install finished after computer all driver install if you first driver install
before focus you choice install for antivirus win 7 install finished after install software first 
for install antivirus do not install before other software first antivirus ok this software finished 
finished driver but not working wifi tips some time wifi stack first off computer and you lap back site remove and inset wifi adapter this is ok but not working you networking connect change 
other network ex: you friends home go to check this is no ok you mind thinking wifi adapter 
some time fail other one replace