Screenshot from #surface by @topgold.
NEARLY EVERY TIME my Microsoft Surface Pro 2 takes a Windows Update, the Surface loses its Marvell Wireless Adapter. I have a simple work-around.
Restoring WiFi to Microsoft Surface
1. I downloaded the Marvell Adapter and stored it locally on the Surface. The download came from the Microsoft site as part of a major update.
2. When the Surface does not connect wirelessly, I go to the Device Manager (in the screenshot) and disable the wireless adapter.
3. After I disable the adapter, I delete it.
4. After I disable and delete the wireless adapter, I shut down the Surface.
5. When I restart the Surface, it normally finds the wireless adapter on its own.
6. I expect to have to log into several systems (such as Google) after reinstalling the wireless adapter. Tip: Use two-factor authentication.
[Bernie Goldbach has used the Microsoft Surface as his primary computer, rendering both audio and video simultaneously at times.]