|Please describe in detail what you did and what the problem was that led you to try that as well as what the state of the computer is right now. Tell us if you have a back up of your files that are on that computer. Tell us if you have any type of Windows 7 install or recovery disk. Tell us if you made a Windows 7 Repair Disk (from the back up section in Windows 7). Tell us if you made a disk image when it was working properly (unlikely, but great if you did).|
These are important in helping you get your system back up and running.
Edit: Are you sure of the model number, that appears to be a Laptop system. Please versify and elaborate. A laptop is a one piece foldable portable computer. A Desktop is a separate computer, monitor, keyboard, and mouse. An All-In-One is the alternative where the computer is built in to the monitor and only the keyboard and mouse are separate, but it is for fixed location use like a Desktop system.
You have to be a little bit crazy to keep you from going insane.