Because of my current line of work, I've been deeply exposed into the utilization of Linux-based systems and servers, and due to that I started to appreciate the flexibility and power of what Linux can actually do as compared to Windblows (Windows). Yet most people still stick on to Windows, not just because their purchased machine came with it or so that they could play games, is because that Microsoft provides support and "liability" upon usage of their products... which is greatly misunderstood and mistaken.
To state a fact, not one operating system available in the (consumer) market is fault-tolerant and susceptible to errors. Even in the open-source community, it has been stressed that Linux and Windows are just as robust as each other, and each still has it's ups and downs. However, the stigma that since Linux-based OS are open source, in which you can't ask anyone for help if you stumbled into trouble, still sticks into society... but this is completely false. I think that Linux-based systems, in particular the widely popular distribution/flavor Ubuntu, has more help support (forums) over the internet than Windows.
People think that when they use Windows, they can "sue" Microsoft if "it" ruins their system, most applicable to corporate or enterprise level systems. But looking at the EULA (yep, the one you just scroll down and select "I agree"), it is stated there that Microsoft products are not fool-proof and therefore Microsoft has no liability on the damages their product can incur. With this, they are just practically the same as Linux, only you just paid Microsoft to use their applications.
I could say that open source is the way to go... it's free... and more flexible than Windows. I admit I still keep my Windows OS copy because I already paid for it before, but oftentimes I use my Ubuntu-partition, most especially on more detailed tasks as a Systems Administrator... but this still goes for ordinary users that just needs all the basic internet, office and multimedia functions. But apart from the basic necessities, photo and video editing are also possible in Linux-based systems. The best part of it, Linux doesn't have any virus to plague you.