Apple BootCamp WiFi Driver update as well as bluetooth driver both not working

FWIW, I have a potential solution for those experiencing the problems I have on a MacBookPro13,3 with the 7.77.110.0 driver, who have the option of connecting to their router (in this case mine is a Virgin Media Hub 3) using a 5Ghz signal and who have the ability to modify the settings of the router.

We assume that initially you have the defective 7.77.110.0 driver installed for the Broadcom 802.11ac Network Adapter device ...

(1) Obtain the latest boot camp support files package (I did so using brigadier (https://github.com/timsutton/brigadier) rather than using Boot Camp under MacOS).

(2) Within the extracted package (which for me was in the directory I ran brigadier.exe in, under a new directory called BootCamp-041-88737) locate a file called BroadcomWirelessWin8x64.exe.

(3) Extract the contents of the BroadcomWireless8x64.exe file to obtain the bcmwl63a.sys file.

(4) In Device Manager, uninstall the Broadcom 802.11ac Network Adapter device (don't check the delete option in the dialog).

(5) Replace the existing BCMWL63A.SYS file in the windows\system32\drivers directory with the bcmwl63a.sys file you obtained in (2).

(6) In Device Manager, click the Action - Scan for hardware changes menu option.

(7) The Broadcom 802.11ac Network Adapter device should re-appear and start without any problems.

(8) You can confirm you have successfully replaced the defective 7.77.110.0 driver file by right-clicking the Broadcom 802.11ac Network Adapter device in Device Manager, selecting Properties, clicking the Driver tab, clicking the Driver Details button and confirming that the file version for the windows\system32\drivers\BCMWL63a.SYS driver file is now 7.35.118.64 instead of 7.77.110.0.

(9) In your router settings, if necessary, split out the 2.4GHz and 5GHz signals (i.e. give each unique SSIDs, so you can be certain you are connecting via the 5GHz signal rather than the 2.4GHz signal).

(10) In your router settings, set the "Channel width" to 20 MHz for the 5GHz signal - anything else does not seem to work (at least in my environment).

(11) You should now find that you are able to connect to your router via the 5GHz signal with a reliable and fast connection.

Following all the hassle this situation has caused, I no longer trust Windows Update to automatically update my device drivers, so I have disabled Windows Update from updating any of my device drivers by following the instructions under the section How to stop updates for drivers with Windows Update using Group Policy at - https://www.windowscentral.com/how-disable-automatic-driver-updates-windows-10.

After doing all this, connections to my router via the 5Ghz signal seem rock solid. Multiple reboots and sleep/wake cycles have not caused any problems, running 5+ hours inbetween and I can max out my existing Internet connection speed easily all the time - so I am now back to the situation I was in before the defective 7.77.110.0 driver was pushed on me by Windows Update and broke it all.

This is of course not a long term solution, as connecting to my router via 2.4GHz gives an unusable connection (despite also trying setting the Channel width to 20 MHz) and I have not been able to confirm that I can obtain similar quality connections to other routers via 5GHz - they would have to have a Channel width setting of 20 MHz as well I assume).

It is Microsoft's responsibility to provide non-defective drivers for the Broadcom 802.11ac Network Adapter device through Windows Update as soon as possible.

you could have just gone to start, gear icon (settings), network and wifi, change adapter settings, right click the wifi and select properties, then configure, select driver tab, then press roll back driver and follow the simple instructions including restart afterwards

you could have just gone to start, gear icon (settings), network and wifi, change adapter settings, right click the wifi and select properties, then configure, select driver tab, then press roll back driver and follow the simple instructions including restart afterwards 

That doesn't work in this case for multiple MacBook Pro users running Windows 10 that I have with our Ubiquity wifi network.  I couldn't roll back the driver on any of the 4 machines I tried it on (greyed out), system restore to point "before the update was forced" didn't help, and I eventually had to manually delete the adapter (and check the box to delete the new/broken driver with it), and then find and manually install the older version of the driver.  (and block updates for drivers from Windows Update in the meantime with a Group Policy, or else windows will seemingly randomly make a new Wifi adapter every couple of days or so - called WiFi 2, WiFi 3, etc - and use or pull the new/broken driver again, unless updates are off and the broken driver is no longer in the Windows driver DB at all).