After updating my Horizon 27 to Windows 10, it was unable to detect my WiFi adapter.
Lenovo does not have Windows 10 drivers for the (original) Horizon 27. The site identifies the adapter as a Qualcomm Atheros device.
I tried installing the Windows 8.1 driver from Lenovo's site, but it didn't work.
Just for fun, I tried downloading and installing the Windows 10 driver for the Horizon 27 2, the next generation model. It is identified as a Realtek RTL8188CE driver, so I didn't get my hopes up.
After a reboot, it worked! In device manager it is a Realtek RTL8188CE Wireless LAN 802.11n PCI-E NIC.
From what I can tell, the Realtek drivers are written by Atheros, and it wouldn't be a stretch to say that they use the same chipset.