How to get high bandwidth

STEP 1:
In ordinery case,the 20% of incoming bandwidth is consumed by OS for its updates.
We can get it back by adjusting the setups.

Start->Run->(type)gpedit.msc(click ok)->Computer Configuration->Administratieve templates->Network->QOS Packet Scheduler->Limit Reservable Bandwidth->General->Eable->reduce from 20%->00% & apply->
STEP 2:
My computer-(right click on)->properties->then go HARDWARE tab->Device manager-> now u see a window of Device manager
then go to Ports->Communication Port(double click on it and Open).
after open u can see a Communication Port properties.
go the Port Setting:----
and now increase ur "Bits per second" to 128000.
and "Flow control" change 2 Hardware.