How to Boost/Increase Laptop Sound to the Max
1) Go to Start > Control Panel
2) Click Hardware and Sound
3) Click the Manage audio devices link.
4) Select the device that you are using (e.g: Speakers ) then click Properties
5) Click Enhancements tab for all list of amelioration.
6) Check the effect that says "Loudness Equalization"
7) Click OK to apply all changes.
Done! Now open any media audio file and test the new Perfect sound without any noises that can be generated by the speakers (totally perfect and clean). You can also Check out How to Install Windows 8 using USB Flash Drive>