We know that the standard PowerPoint needs a license to be used unless you are running the evaluation period for Office. But recently Microsoft launched Office for Web including the popular Microsoft powerpoint but the web-based version.
Here you will learn how to make a powerpoint online for free. First you need to get a free Hotmail account. You can register in Hotmail for free following the Windows Live signup process, which is simple.
Then you need to sign in Hotmail with your free account and open web based powerpoint inside your Windows Live account.
Finally you will be able to create or open a powerpoint for free without needing to purchase a license while using the online version.