Increase Your Internet speed
Follow the step:-Go to desktop->My computer-(right click on)->properties->then go HARDWARE tab->Device
manager-> now u see a window of Device managerthen 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.
apply and see the result

TRICK 2
This is a nice little tweak to get 20% of bandwidth back.Microsoft reserve 20% of your available bandwidth for their own purposes (suspect for updates and interrogating your machine etc..).

* Click Start–>Run–>type “gpedit.msc” without the ” This opens the group policy editor. Then go to

Local Computer Policy–>Computer Configuration–>Administrative Templates–>
Network–>QOS Packet Scheduler–>Limit Reservable Bandwidth
* Double click on Limit Reservable bandwidth. It will
say it is not configured, but the truth is under the
‘Explain’ tab :

“By default, the Packet Scheduler limits the system to
20 percent of the bandwidth of a connection, but you
can use this setting to override the default.”
* So the trick is to ENABLE reservable bandwidth, then
set it to ZERO.

This will allow the system to reserve nothing, rather
than the default 20%.

do this two changes your internet speed will be increased for sure