This thing works, this thing really really works. I’ve tried it and now, m loving it 
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- Click Start –> Run
- Type in “msconfig”.
- Go to Startup in the tabs above. You will see a list of applications that startup when your system starts.
- Now observe them, if you dont know what they are, then Google them, but most importantly, do not change the setting of any of the system applications( Audio Softwares, Antiviruses, Graphic Adapters and system files)
- The applications which are ticked are the one’s which start on startup. Disable them only if you know that they are not required there. Like,Yahoo Messenger need not be there, so you can disable it if you wish to.
- Once done diabling the ‘not-required’ items, Click Apply and the computer will then ask you to restart. Do so and the system should reboot faster.