how to disable wifi ... Kudupro laptop

[mahesh]

i want to do an install on my old Kudupro laptop (actually, i have two of them). i will be doing this where i will not have access to shutdown the wifi access point router. i want to be sure this install does not go out to the internet on its own before i have an opportunity to add a software on/off switch. is there a hardware means to do this, other than to do the install inside a Faraday cage?