Hp Pavilion dv7 Laptop not Working after corrupt registry

Hi everyone. I'm a girl who is semi Computer literate and by that i just mean that I've edited keys or values in my registry (using someone else s instructions) with great success. Recently i have been bugged by ads INCESSANTLY (it got to the point where every click would open up a new window with an ad in it). All my previous fixes would not get rid of them, so i finally decided to try downloading programs that could fix it for me. The main 2 that i downloaded were:
Spy Hunter &
Malwarebytes.

Spyhunter seemed to be able to find all the actual places that the filthy ads had infiltrated and i got really excited.... Until i found out that you have to pay to actually fix your computer for you. SO i decided to try and not be lazy and just follow the paths illustrated and go ahead and delete those folders/registry keys myself. Now i'm on the brink of weeping because almost everything is refusing to work. Nothing is installing/ uninstalling, my wifi is showing permanent limited access but all our other pcs/phones have perfect network, some programs refuse to open AT ALL and i really have no idea what to do. I even tried to download a registry repair off the internet which had step by step instructions on how to reinstall windows installer which i did... but to no avail. Worst of all is that my HP assist wont work so it cant even tell me where the problem is. i am getting dizzy just thinking about it, please if anyone could help i would be very much obliged and i'll never touch my registry again!!! (also, please tell me an effective way to get rid of extremely stubborn ads). I came here and i saw an upload by User Roderunner on how to do a non-destructive total re-install of windows. Is that the only option that i have left? A re-install of my Windows 7?

turn it on in safe mode with networking run malwares byes and hitman pro and restart your pc

can you see this

yes i can see it :) i will try that now. That means restarting my laptop and pressing f8 right?

yes keep on tapping f8 then you have to choose an opyion i advanced boot option i.e safe mode with networking and when your pc starts run malwares bytes and clean your pc and restart it again.
may i have your full name

if its okay with you ill fix it for you you have to temme your contact ill call you and assist you further

It made no difference i forgot to mention that when i start it gives me a message that says Error: Failed to make WIC ImagingFactory. Would you really not mind calling me?

no problem linley im in the same profession of tech support ill call you