Increase Internet Speed

Let’s know that how to improve the speed- 

1)
     1. Go to Start-> Run-> and type gpedit.msc press Enter
     2. Expand the Administrative Templates branch
     3. Expand the Network tab
     4. Highlight QoS Packet Scheduler
     5. Click on Limit Reservable Bandwidth and check the enabled box
     6. Then Change the Bandwidth limit % to 0 %

2)

    TurnOff or restart the system 

go to MyNetwork places right click select properties
click on configure
select speed & duplex
in the right side u will get one window
go to that and select 100mbbs full duplex and click ok then u wil see ur net speed wil increase by 100%
if not just restart ur system after doing above procedure.

3)

     In the Modern days most Internet Providers have flaky DNS servers.  So, instead of using what you have been provided by your ISP, You can switch your DNS servers to use other OpenDNS. Generally OpenDNS are far faster as these use large caches. these are more reliable, For Example using 208.67.222.222 and 208.67.220.220 as your domain name servers will speed up most flaky DNS problems

4)

     Access all offline content and then click on run and type %temp% & prefetch delete all this.

5)

     click on run and type MSCONFIG and go to start up and remove all the tick except sound and graphics

6)

     Clear Your System's Cache

7)

     Disable IPv6. IPv6 is the replacement for IPv4 when IPv4 runs out of possible IP Addresses from all the new computers popping up around the world but it is used only in few countries only. In your Firefox address bar type "about:config" without the quotes. In the filter bar type "ipv6" and one result should be left. Double click it, network.dns.disableIPv6, so that its value is set to true.

Browser Help :-

1. Open Your Browser

2. Delete all History and Cookies

3. Blok All Adds and PopUps                                                   

4. Upgrade Your Browsers to Latest Version

Mozilla Firefox:-

If you are using Firefox  download the FasterFox addon. You can either Google search it or go to Firefox's addon site and search. 
Also as BearClaw said Adblock Plus is a great addon for firefox. It will save yourself a bit of bandwidth by blocking tons of ads. 
Add the plug-ins Grease Monkey and Ad-Block to Firefox

Software Help:-

1. You can use a PC Optimizer Software 

2. or cleaner, such as CCleaner. 

3. SG TCP Optimizer is supposed to be a decent program to tweak your internet connection.

4. Internet Cyclone will boost your windows to maximum internet performance