This document describes how to use the Windows® XP Professional installation disc to downgrade the Windows Vista Ultimate Edition (Simplified Chinese)/Windows Vista Business Edition (Simplified Chinese) operating system pre-installed on your VAIO computer to Windows XP (Windows XP Professional Service Pack 2).
This guide explains how to downgrade a Sony VAIO notebook from Windows Vista to Windows XP Professional (Service Pack 2). It outlines the preparation steps, including creating a system image and backing up important data, before starting the installation.
After the downgrade, certain Vista‑only features such as Instant‑On, VAIO HDD Protection, and some network functions are unavailable. The guide also notes that antivirus software and other third‑party applications are not included and must be installed separately. This manual is written in Chinese.
| Target OS | Windows XP Professional Service Pack 2 |
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Features such as Instant‑On, VAIO HDD Protection, and certain network functions are not available after the downgrade.
No, the Windows XP Professional installation does not include antivirus software; it must be installed separately.