Increase Internet Speed

Just follow the steps below:
Click Start -> Run, input "gpedit.msc", press enter.

Now, on the appearing window, open:
Local Computer Policy -> Computer Configuration -> Administrative Templates -> Network -> QOS Packet Scheduler.

Double click "Limit Reservable Bandwidth", change the value from "not configured" into "Enabled". After that, change the value of "bandwith limit" into 0%. Click "OK".

That's all. Now you only need to restart your PC for the setting to work

^^

A Good Antivirus

Actually I dont know what is the best Antivirus right now, but let me just show you something:
What Slows Down Your PC

It has been a few years that I don't install Antivirus, and during this year I never got any virus.
It is better to prevent and take care than trying to fix things that already broken.

Windows Game Cheat

A few trick (cheat) for windows game

MineSweeper:
You can stop the time in this game in a very simple way. All you have to do is start the game, click a few box so that the time run. Then just press Windows + D (Show Desktop). The time will freeze, now you can take your time to finish the game ^^

Freecell:
In Freecell you can have an instant win by pressing Ctrl + Shift + F10. Later a pop up box will appear, just choose abort to win. Well... I think this means 100 winning streaks, lol.