I'm a 40 year old self-proclaimed geek who enjoys all things open source and Linux. I don't use, advocate or really even condone the use of most proprietary technologies. (So, no, I can't fix your Windows system. I can recommend some good alternatives, though.) My geekiness extends into Linux, Android, computers, information security, video games, music, movies, and programming.
I have been using Linux for about 16 years now exclusively on all my machines. Over the years, I have done a lot of reading, posting on forums and Googling to learn how to use it effectively, and I keep discovering new aspects of it every day. I firmly believe in the open source community and immensely enjoy helping others with Linux. Since 2007 I have been using ArchLinux to improve my understanding of what goes on 'under the hood' of Linux. While I'm no expert I do have a wealth of 'hands-on' experience with Linux and Linux systems.
I enjoy the challenge of figuring new things out, especially the challenge of bending my computer to do exactly what I need it to do for me. And that's one reason I love open source and Linux in particular. I do not mind rolling up my sleeves and tinkering under the hood of my computers, both in the software and hardware aspects.