Symantec User Migration (SUM) is a great tool to pull a users files, icons, registry settings and Windows settings and put them in a nice and neat little file. They can either then be saved as a backup or installed onto another PC.
This is for the Windows (and WinPE) drivers for any PC that uses Intel network drivers 825XX (Such as 82567LM for example) and how to put them into WinPE.
First you will need to download the drivers from Intel, NOT Dell or HP or whatever brand you have.