IT Certification and Training Blog

MS Windows 7 Tips and Tricks | 2.6 Upgrading to Windows 7

Posted by Kelson Lawrence on Jan 15, 2013 4:15:00 PM

2.6 Upgrading to Windows 7

By Val Bakh

Although replacing an older operating system with a newer version is commonly referred to as an upgrade, the exact, technical definition of the term upgrade is more specific. When you are performing a clean installation (that is, when you choose the option to perform a custom installation) on a volume that contains an older operating system, the existing operating system and all installed software and personal data are either completely removed or disabled and a new operating system is installed instead. All applications have to be reinstalled, and personal data can be restored from a backup. If you choose the option to perform an upgrade, the new operating system gracefully replaces the existing operating system while preserving the installed applications and personal data. Not all upgrade paths are supported. For example, an x86 (32-bit) edition of any Windows operating system cannot be upgraded to an x64 (64-bit) edition and vice versa. To perform an upgrade, you always need to initiate it from within the existing installation. For example, to upgrade Windows Vista to Windows 7, you need to boot the computer into Windows Vista, insert a Windows 7 DVD, and click Install now. This means you can never perform a true upgrade if you boot the computer from a Windows 7 DVD into Windows Preinstallation Environment (WinPE).

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Tags: Val Bakh, Windows 7, tips and tricks, upgrading to windows 7