1. Grab all the drivers you need from here and put them on a USB Flash Drive for later.

2A. Download a Windows 7 Home Premium 64bit disc from here and burn that to a DVD

2B. Alternatively, you could do what PILGRIM suggested and use the Windows 7 USB/DVD Download Tool to put the installation files on a USB which would speed up the installation process on your computer.

3. Back up any important data to an external hard drive

3A. I'd recommend doing a Windows Backup and backing up the entire drive so you can get all of the files, like in AppData that could possibly have saved games, just like some saves might be in the My Documents folder

4. Use Activation Backup & Restore to backup your Windows Activation . Alternatively, just have the Windows Serial Key from the bottom of your laptop handy so you can activate Windows 7 again.

5. Boot from the DVD (usually done by pressing either F10 or F12, possibly Esc to get to the boot menu)

6. Go through the setup procedure, and make sure to choose Custom Installation, and format your hard drive (I'd recommend leaving the Recovery partition alone)

7. After Windows is done installing, and you are at the desktop, plug in the USB and install all of the drivers you grabbed earlier

8. Move your important files back, re-install any programs such as Office, your games, etc.

I think that's about it, that's all I ever do when I do fresh installs, but if someone has something to add I can put it in this guide