This is not just one trick but a series of simple trick that lets you significantly increase you internet speed and i guarantee you an increase in your internet speed. This trick works on all windows machine including XP, Vista and windows 7.

1] go to desktop->My computer-(right click on)->properties->then go HARDWARE tab-> Devicemanager-> 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

2]type this coding in notepad and save as .reg and then execute this file....this will increase ur surfing n downloading speed.....

REGEDIT4
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters]
"SackOpts"=dword:00000001
"TcpWindowSize"=dword:0005ae4c
"Tcp1323Opts"=dword:00000003
"DefaultTTL"=dword:00000040
"EnablePMTUBHDetect"=dword:00000000
"EnablePMTUDiscovery"=dword:00000001
"GlobalMaxTcpWindowSize"=dword:0005ae4c

3]Xp reserves 20% bandwith,
to unreserve it,follow following steps:

a)Click Start

b)Run:"gpedit.msc"

c)Goto:>Local Computer Policy
-------–>Computer Configuration
-------–>Administrative Templates
-------–>Network–>QOS Packet Scheduler
-------–>Limit Reservable Bandwidth

d) Double click on Limit Reservable bandwidth

e)Select Enable

f) Change 20% to 0%

g)Click Apply

Enjoy!

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