So I'll type about it instead.
This blog is pretty much 100% Code Lyoko... so yeah...
First, get your Windows menu up and get your ass over to the control panel:
Next, make sure you view by Small Icons:
Then haul yourself over to sound.
When you have that open, right-click your sound output (where you want the sound to come out of; could also be earphones) and click Properties:
Next, you’ll be in the General section of your music output’s properties. Just go to Enhancements…
…scroll down to the bottom of the box and click on ‘Loudness Equalization’ to tick it.
Click OK and then you’re done, your music can now be louder :)