Look in your manual for how to create recovery media.
If that does not work it looks like you can order the media here.
If that does not work for you perhaps you should take it back to the shop and let them fix it.
I have Sony VAIO laptop in window 7 version 6.1 . I have my laptop fixed when my screen was broken but after that, when I got my laptop back, there were many things that were lacking. It was not the same as before . All the things changed . The camera doesn't work anymore, I can't adjust the screen brightness - the screen is so bright that it hurts my eyes , the fn keys don't work for the brightness adjusting too but surprisingly the fn keys work for the volume.
Although the wireless is in green , I can't connect to wifi at all. I can only connect with my phone with cellular data. I used to connect it with wifi but now it doesn't work anymore.
I can't download any apps too even when I connect it with the Cellular data fromy phone .
I already searched solutions from many websites but none of them works for me.
The people who fixed my laptop when it got screen broken told me that I should run the laptop with some kind of CD that comes along with me when I bought the laptop. But the thing is that I lost it and I don't know what that CD is about and I don't really know if it will help my laptop .
A friend of my aunt told me that i should download some kind of software or something (which I don't understand what he said ) from a website by putting my model number . I don't know what he is saying though and I can't find any website he's saying.
The only main problems for me is that I want to adjust the screen brightness and be able to connect to wifi.
Please help me . I'm really exhausted finding the solutions.