In Regedit, go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318} and look the key for your wireless adapter.
Back it up then delete the following keys:
gpioPinFunc1
gpioLedCustom
gpioFunc1ActHi
After, restart.
If you want to have a visual cue of network activity, you can right-click the network icon in the notification area of the taskbar and select Turn On Activity Animation, and this is more subtle and less distracting than the amber LED. By the way, the button to turn the wireless adapter on and off still works after deleting the above keys.
Crossposted here
