Datasheet

Prepare to Install Windows 7 15
Another possibility is to upgrade your Windows XP machine to
Windows Vista and then upgrade the new Vista operating system to
Windows 7.
You can perform an upgrade to Windows 7 if the following condi-
tions are true:
You are running Windows Vista.

You want to keep your existing applications and preferences.

You want to preserve any local users and groups you’ve created.

You must perform a clean install of Windows 7 if any of the follow-
ing conditions are true:
There is no operating system currently installed.

You have an operating system installed that does not support

an in-place upgrade to Windows 7 (such as DOS, Windows 9x,
Windows NT, Windows Me, Windows 2000 Professional, or
Windows XP).
You want to start from scratch, without keeping any existing

preferences.
You want to be able to dual-boot between Windows 7 and your

previous operating system.
Table 1.3 shows the Vista operating systems that can be upgraded
and to which edition of Windows 7 each should be updated to.
Table 1.3: Windows Vista Upgrade Options
Windows Vista Edition Windows 7 Edition
Home Basic Edition Home Basic Edition
Home Premium Edition Home Premium Edition
Business Edition Professional Edition
Ultimate Edition Ultimate Edition
Before you decide if you should upgrade or install a clean Windows 7
operating system, let’s take a look at some of the things you need to con-
sider about upgrades.
Installation
PART I
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