From past experience, the generic drivers provide a majority of common functions for laptops (meaning things like OEM specific features, function buttons and the like may not work). The generic drivers should also work well for most wifi cards. In addition, you should find reference drivers for most any igp, and a majority of dGPUs, though some switchable dGPUs may be locked out of reference drivers entirely (as has been my unfortunate experience).
It's a bit of hit-and-miss, but for all intents and purposes, you shouldn't have issues getting your laptop to function well with Win 7.