Installing Windows 7

It is so easy if you know how to do it but what if not - to save cost, go for DIY :p

What do you need?

As per microsoft recommendation, minimum specification will be as below

• 1 GHz 32-bit or 64-bit processor
• 1 GB of system memory
• 16 GB of available disk space
• Support for DirectX 9 graphics with 128 MB memory (to enable the Aero theme)
• DVD-R/W Drive
• Internet access (to activate and get updates)

Let's start to install Windows 7

01. When installing on a physical computer insert your Windows 7 DVD media into your DVD drive and reboot your computer. If you're asked to press a key to boot from DVD or CD, press any key. A black window will appear momentarily while the DVD content is read.

02. Like in Windows Vista and Windows Server 2008, after a few moments you will see the first prompt
03. Click "Next" unless you want to change some regional settings for the installation process. 
04. Click on the "Install now" button.
05. Next, accept the license terms and click on "Next".
06. Next, unless you're upgrading an existing Windows installation, press the Custom (Advanced) installation type button.
07. Click on the "Next" button. The installation process will then create a partition on all the available disk space, and format it.

REST TIME
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Process could take a while depending on the type of hardware your computer uses. In my VM test sample I've used for this demo, the entire process finished before I could finish writing the previous 3 paragraphs, so it could be pretty quick.
The computer will reboot, and the next thing you'll see is the prompt to set the user's and computer's name. By default, the computer's name will be username-PC, where username is the username you've entered.
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08. Click on "Next".
09. Enter the user's password. Remember this password please
10. Next, type in your product key. If you do not have the product key at hand you can still click "Next", and proceed with the installation. You will be asked to enter the product key after Windows is installed.
11. Choose what sort of protection your computer gets. It will effect on how the computer uses the Microsoft Windows Update (Automatic Updates) features.
12. Choose your time zone and location and click on "Next".
13. Select your network location type. This setting can be changed later, but do note that choosing a profile will have effect on the Windows Firewall and sharing settings. Click on "Next".
14. Windows will finalize the settings and your desktop will appear.

This concludes the Windows 7 installation. Next, you would probably want to update your computer with the latest hotfixes and/or patches from Microsoft.