What was the last Linux laptop you installed a Windows on? (edit: removed unnecessary remark.)
The last laptop I did a clean install of Windows (7) on was a HP netbook. Even though it was a Windows machine, and I used their Windows install disc, it was a miserable experience (because I didn't have the separate driver disc). Not only did not the WLAN work, neither did the Ethernet port: the only way to get online was by using my phone as a Bluetooth dial-up – luckily I had a Symbian device you could do that with. And even then, Windows Update was of no help – I had to navigate to HP's website to download the very separate driver packages for WLAN and Ethernet functionality (and any other packages I can no longer remember).
By the way, with Ubuntu connectivity worked fine out-of-the-box – which is lucky, because although I have used Linux for over a decade as my daily driver, I have never had to install WLAN drivers for one, and probably couldn't. (Nothing could save the slow Atom from offering woeful user experience, though. One of the worst deals I ever had as far as computers go.)
edit: wording and clarification