Sunday, February 3, 2013

Lesson 2 - Installing Windows 7


Before installing Windows 7 or any operating system for that matter there are some fundamental questions that need to be answered. Such as:
  • What operating system to purchase?
  • Will the hardware support the new operating system?
  • Will the new operating system support the existing applications?
  • Should I perform an upgrade or a clean installation?

These are just a few that need to be answered, however if you can perform a clean installation it will achieve the best possible performance. This is because you are installing the operating system files on a blank disk which are un-fragmented.

With the new boot environment Windows 7 has eliminated DOS from the installation process. The MS-DOS boot was necessary because the computer required an operating system to run the installation program and gain access to the disk drives. However with the introduction of Windows PE it includes Windows Preinstallation Environment 3.0.

Windows PE 3.0 is a bare bones operating system, based on the Windows 7 kernel. The following are distinct advantages to Windows PE 3.0:
  • Native 32-bit or 64-bit support
  • Native 32-bit or 64-bit driver support
  • Internal networking support
  • Internal NTFS support
  • Scripting Language support
  • Flexible boot options

Because Windows PE was never intended to function as a full time operating system there are some inherent limitations. Windows PE does not support the entire collection of Win32 APIs as a full installation of Windows 7 does.

The chapter goes through how to perform a clean installation, installing third party Device Drivers, working with Installation partitions, and using Windows Easy Transfer. The last portion is about Upgrading Windows 7 and performing a dual boot installation.

I found the chapter to have a lot of good information. The material was presented systematically with a lot of notes and examples. It was a good foundation chapter.