If our computer takes a long time to open a website or to launch windows, we will feel mad. Anytime we use computer, we just want our computer running fast. But even a new computer will start to slow down after a few months, and the computer gets worse as your computer ages.

Then how to speed up our computers?
One of the most basic ways is by defragmenting the hard drive. Through the normal course of a day, fragmentation scatters files all over your computer, making information harder to find and allowing down your PC. A regular defragmentation schedule will eliminate this problem.
Or you can improve your hardware. If your computer becomes slow, it may be because your hardware isn’t getting the job done. By using the windows Experience Index, this will show you where your computer is weak.
Or you can remove Adware and Spyware. This kind of programs secretly added to your computer without your knowledge. Over time, they will drastically slow down your PC.

There are ways to speed up your computers that is getting creaky. For speeding up to start a computer, many computer users would make their password vanish from windows. Don’t put your computer in danger. There are also many ways for you to reset Windows 7 password, too. If you lose password one day, use windows password recovery software to help you.

auslogics boostspeed is the dogs bollocks in this feild

it can be cracked but i suggest you pay for it as its well worth the money
I use it on every pc I can get my hands on

second best would be "tune up utilitys 2012"

these can be found on frostwire

Well the utility software can make a huge difference, they clean and defrag the registry and help in disk maintainance.

Defrag your drivers, Clean your desktop and don't forget to use good anti virus system.

Well what I usually do is I use a utility software to correct all my registry errors, disable all the unnecessary features like indexing and some start-up components. Works fine for me.