In order to add a wifi profiles during OSD there are a few options, one of which is to use an XML which is what i will be using.
First of all, we need to capture the currently wifi settings on a machine which is connect to the SSID we want to use, open command prompt as admin and type in the following
netsh wlan show profiles
You should then see the profile name
Next type in the following changing the relevant text
netsh wlan export profile name=”your wifi proile name ” folder=”c:\temp”
Now we have the xml file we need to copy it over to one of our sccm file shares and create a package without an application
Next go to the task sequence you wish to add the profile too
Add a run command line and select the wifi package you just created
In the command line type in the following
CMD.exe /C netsh WLAN add profile filename=\\the location of your xml file\name of the xml.xml
The final step which is optional is to connect the device to the wifi network during the OSD
Again add a run command line and name appropriately
Type in the following
cmd.exe /c netsh wlan connect name=”name of your wifi SSID”