Hi, I'm finally getting around to replacing my laptop that barely recognizes the fact that its a computer but I am on a budget, I decided on this http
/ an HP Pavilion 17-e110dx.
Now to provide some background information I am A+ certified and I am certified by Microsoft for Windows 7 so I know what I am doing. That being said the laptop in mind comes with windows 8.1 now I plan on using that for but I've used windows 8 in the past and just can't like it so I was discussing with another certified friend of mine that works at geek squad (yes I know Geek Squad but he knows his sh*t) about "downgrading to windows 7 and he said that I may run into issues with that "downgrade" with hardware and driver support.
Do you guys think that I will run into any issues that can't be solved. I'm mainly looking at keyboard, optical drive, and NIC because most anything else IS supported on 3rd party sites.
TL;DR: I'm getting a laptop with windows 8.1 and want to put 7 on it. Will this cause problems.

Now to provide some background information I am A+ certified and I am certified by Microsoft for Windows 7 so I know what I am doing. That being said the laptop in mind comes with windows 8.1 now I plan on using that for but I've used windows 8 in the past and just can't like it so I was discussing with another certified friend of mine that works at geek squad (yes I know Geek Squad but he knows his sh*t) about "downgrading to windows 7 and he said that I may run into issues with that "downgrade" with hardware and driver support.
Do you guys think that I will run into any issues that can't be solved. I'm mainly looking at keyboard, optical drive, and NIC because most anything else IS supported on 3rd party sites.
TL;DR: I'm getting a laptop with windows 8.1 and want to put 7 on it. Will this cause problems.