How do i fix my screen?

How do I fix my screen? How do I fix my internet Connection?

• I originally downloaded the Windows 8 Pre releases and didn't like it. Then I wanted my Windows 7 back and because my computer came with it pre-installed I did not have the digital media or the disk to download it. I used a student ID and got it from Digital River. After downloading it the screen looked different and the resolution was different. I went to control panel then to screen resolution and made it on how it should be. It still wasn't the same as it used to be. I have also tried the drop box and that will not make a difference either. I have tried everything. The screen does not look like a HD LED monitor and it also looks zoomed it. I don't have the Service Pack 1 or 2 installed because after downloading Windows 7 again it wouldn't let me connect to the internet Heres my second question. I have a great computer basicaly brand new and the company still supports the model. It has a wireless adapter built in. I used to always get a wireless signal on it. When I re installed Windows 7 the wireless stooped working and it said it doesn't support it. It will only take a wired connection and I don't know why. PLEASE HELP!

• Answer:

  You need to reinstall the drivers sounds like you got ride of them very important for your PC to work. If you didn't get a drivers disk with your PC your going to have to find a way to get the drivers for your PC and your OS system. go to the store you got it at and see if they have a driver disk. Once you get the drivers you will need to install them. Good luck