Fruity Loops / FL Studio 11 is the best beat making software for Windows. With FL Studio 11 you can make music from scratch. Fruity Loops 11 lets you make your own beats that are original.
FL Studio 11 has a Virtual Drum Machine, Sequencer and can be used as Remix Software or DJ software. Great for techno and hip hop.
FL Studio 11 is a complete software music production environment, representing more than 15 years of sustained & focused development. Everything you need in one package to compose, arrange, record, edit, mix and master professional quality music. FL Studio 11 is the fastest way from your brain to your speakers.
One of the most exciting things about (the online version) of FL Studio probably is that all updates are FREE for LIFE ! This means you're guaranteed to receive version 11.0, 12.0, 13.0 and so on forever...