Are the Bluetooth and Wi-Fi devices/services available and reachable during the bootup process?

[u20210512]

When I power on the computer, are the Bluetooth and Wi-Fi devices/services running and available?

In cases when I load the BIOS Setup, are the Bluetooth and WiFi devices/services running and available?

When I power on the computer and access the System Recovery menu, are the Bluetooth and WiFi devices/services running and available?

When I write "devices/services running and available" I mean that is for example that I had an external Bluetooth device though which I could communicate with the computer's Bluetooth service I could do so while the screen shows the boot up menu, and/or the BIOS Setup, and or the System Recovery.

It would be great if you could describe when and how these services are loaded.

Thank you

PS: on 20210803 I logged in to the forum and I see this post and a duplicate. I am wondering why this happened?

https://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/Are-the-Bluetooth-and-Wi-Fi-devices-services-a... 

https://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/Are-the-Bluetooth-and-Wi-Fi-devices-services-a... 

Strange!!!

[WAWood · Accepted solution]

@u20210512 

These services use Windows drivers, so they are loaded during Windows bootup.

[u20210512]

I think I am able to disable the Network Adapters from the BIOS Setup, but I am wondering is there is a way to disable bluetooth before loading the OS?

Do you know if the Bluetooth is working when in WinRE environment?

Thank you

[WAWood]

@u20210512 

Good question -- and my answer would have been yes -- but today, I had need to reboot a laptop into WinPE to do some file restores and the bluetooth mouse was not seen at all!  So, it looks like BT does not get loaded in the WinPE environment.  I don't know about WinRE, but my guess would be the same.