Calling the Thecus N5550 a NAS is almost selling it short, because it's much more than that. It's a network server for at home or in the office, and you can use it to download files, as a digital photo album, and for connecting IP cameras. You can connect it to a computer obviously, but also tablets and smartphones let you access it via apps.
There is a lot of free Microsoft software to be had, programs which enable better web surfing and help protect against spyware are just two types. PCSTATS Tips