I'm sure that Intel will not mind me mentioning that the simplest solution to the Acer Aspire 5920 and Windows 10 wifi compatibility issue is to replace the Intel mini-PCIe adapter/card with the equivalent Broadcom card (the ethernet driver in this PC is already Broadcom). The equivalent wifi card is the BCM94311MCG at the dizzy cost of 4.00 from eBay. Very easy to fit (see YouTube) and installs perfectly and quickly DURING AND AFTER boot (so give it a chance) and assuming you have your ethernet cable fitted and working.