If ping, Ipconfig wont work...

Before you start changing your path variables check that ipconfig.exe is in the C:windows/system32 folder and that it works. If it works ok from there then it is your path variables that are incorrect. To edit the path variables right click ‘My Computer’ select Properties, select the advanced tab, select the ‘Environmental Variables’ button.

Under the system variables box you should have the setting “PATH” which should contain the following variable value ‘%SystemRoot%\system32;%SystemRoot%’ 

It will also contain other variables depending on which programs you have installed. You should also have the setting “PATHEXT” which should contain .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.PSC1

You should also check that the setting “windir” is set to your Windows directory.