Let me tell you a quick method that will work for you and anybody else.
1. Get some YT Accounts - http://fiverr.com/endripurwati/make-10-gmail-youtube-accounts-manually
2. Find a download that people want. Make it a high-value download (think Photoshop, not like a song or something).
3. Make a video of you downloading the file and installing it. Put a MediaFire link in the description with your ZIP of the setup.
4. Have the zip password locked. Use WINRAR to do this.
5. Make a README.txt or an INSTRUCTIONS.txt that includes how to unlock the file. (Going to your website and filling out an offer).
6. Don't just upload the videos, but market them as well. Get views and likes for them.
7. If you have 10 videos and aren't making more than $5 a day, "Ditch the nitch" and move on. If its making about $10 a day, go up to 30 videos.
8. Rinse and repeat.
This method has been shared quite a few times, so you have probably already heard about it.
If not, ask more questions and I'll be happy to answer.