i took it from winreducer 10
For Bluetooth:
Support - Bluetooth
Bluetooth Support Service
Control Panel - Infrared (Files) -> i needed some files from here at windows 7
for only WLAN funktion:
Windows Connect Now Service
WLAN AutoConfig Service
WWAN AutoConfig Service -> need that at windows 7 (excluded at winreducer 10 at the moment)
Control Panel - Network and Sharing Center
Control Panel - Network and Sharing Center (Files)
Control Panel - View Available Networks
Control Panel - View Available Networks (Files)
Control Panel - Wireless Devices
Microsoft Wi-Fi -> not sure about that
that are at least the components that i keep and i never got any problems with my wifi -> windows 7, 8, 8.1 and 10 tested