I used this site once before and buddy215 was fantastic in helping me. I hope someone can help with this issue.
My Wifi adapter has disappeared on my new Lenovo C50 all in one computer. I have had the computer about 2 months and it has been Windows 10 the whole time and has functioned generally well, although the Wireless connection has occasionally stopped and showed no wireless connections in range when there are several. Usually restarting has sorted it out, but not this time. I guess the computer may well have been Win 7 or 8 before I purchased it (from a high street retailer - PC World) but this is not an issue that has come about immediately after a Windows 10 upgrade.
There was a Windows update (KB3140741) around the time the adapter disappeared today, might be coincidence. I've tried uninstalling that update but it won't let me.
I've updated the driver for the wireless adapter (Realtek PCIe GBE Family Controller) in the device manager and it's now completely up to date. The properties say it's functioning correctly but it still doesn't appear at all when I go into Network and Internet, VPN, Change Adapter Options. All that is there is the bluetooth network connection and Ethernet which is what I am using whilst I fix this.
I have also tried the two solutions on this site http://www.drivethelife.com/windows-10/fix-no-wifi-available-after-windows-10-update.html which is to download some software and to attempt to amend the registry. The software states that the driver for the wireless adapter is up to date, and the registry entry it suggests to delete doesn't exist, so both of those options have drawn blanks.
I've spent ages on the internet looking for an answer so I hope you can help as nothing seems to have worked.
Thanks in advance.