Step 1 :
Goto Start
---->Run



Step 2:
Type "gpedit.msc" and press Enter.

An new window will open with title "Group Policy"

Step 3 :
Goto Administrative Tools under Computer Configuration
---> Network
---->QoS Packet Schedular
----> Limit reservable Bandwidth

Enable it and set the value to' 0 '

Windows only allows you to use 80% by default reserving remaining 20% for system usage which is not neccessary. The above tweak will allow you to use full 100% bandwidth for your browsing activities

After that, press F5 and reboot your computer. Enjoy 20% more Internet speed

Contact me for any further help