use network meter windows 7 gadget it's very useful it will show bandwidth ,signal strength,type of network ,data usage but to install it on windows 10 you need install gadget pack first
http://8gadgetpack.net/
you could download from here
if some suppose my network adapter has 10 gigabit speed capability but my harddisk is not that much speed
and if i transfer files through network will i get 10 gigabit transfer speed?