Máy tôi dùng Win XP SP2, IE7, WMP11; cấu hình: P4 socket 478 (2,4GHZ), main D865GDF, RAM: 512+256, HDD SATA 160GB?

Bạn nói rõ vấn đề đã được MS hợp thức hóa là sao? Có phải là bạn đã mua bản quyền rồi hay chỉ là dùng serial ở ngoài để crack. Trường hợp của bạn là bị Window hỏi bản quyền nên không install được. Bạn có thể dùng chương trình sau để tải các bản vá lỗi về rồi cài offline từ từ nhé:
1- AutoPatcher XP September 2005 Full/LiTE
This release is based on the all-new AutoPatcher 5.0. Although it was made with Windows XP SP2 (English) in mind, it will load on any Windows version or language, showing only the items which match the running environment.

What's included (English September 2005):

Windows XP SP2 - Recommended updates
KB831240: Update for HighMAT support in the Windows XP CD Writing Wizard
KB884020: Update for Windows XP
KB885222: Update for Windows XP
KB886677: Update for Windows XP
KB886716: Update for Windows XP
KB887742: Update for Windows XP
KB887797: Cumulative Update for Outlook Express for Windows XP
KB888240: Update for Internet Explorer 6
KB888656: Update to enable DirectX Video Acceleration of Windows Media Video content in WMP 10
KB889527: Update for Windows XP v3
KB891122: Update for DRM-enabled Media Players
KB892313: Updates for Windows Media Player 9 and 10
KB893357: Update for Windows XP
KB894391: Update for Windows XP
KB895181: Fix for MPEG4 videos in Windows Media Player 10
KB896344: Update for Windows XP
KB896626: Update for Windows XP
KB897663: Update for Windows XP
KB898458: Security Update for the Step-by-Step Interactive Training Application
KB898461: Update for Windows XP
KB900930: Update for Windows XP
KB903234: Update for Windows XP

Addons
Adaptec ASPI
Bootvis 1.3.37 (only in Full)
Google Toolbar 3.0.125.1 (only in Full)
Official Windows XP PowerToys
Copy Profile Tool
DirectX Control Panel
PowerMenu 1.5.1
Startup Control Panel 2.8
New XP Style Wallpapers (only in Full)
New XP Screensavers (only in Full)
Macromedia Shockwave Player 10.1 (only in Full)
Macromedia Flash Player 8 for Internet Explorer (only in Full)
Macromedia Flash Player 8 for Mozilla, Firefox, Opera and Netscape (only in Full)
New Theme: Royale (only in Full)
New Wallpapers (only in Full)
New AutoPatcher Wallpaper (only in Full)
Sun Java 1.5.0_05 (only in Full)
WinUptime Tool (only in Full)Tweaks

Windows XP SP2 - Updated Components
.NET Framework 1.1 (+SP1)
- KB886903: Security Update for .NET Framework 1.1 SP1
MSN Messenger 7.5.0299 (only in Full)
Windows Installer 3.1 (v2)
Microsoft Journal Viewer 1.5.2316.0 (only in Full)
Windows Media Connect (only in Full)
Windows Media Player 10.0.3802
Windows Messenger 5.1.0680 (only in Full)
Windows Script 5.6 for Windows XP (v5.6.0.8825)Windows XP SP2 - Critical Updates
CODEKB873333: Security Update for Windows XP
KB873339: Security Update for Windows XP
KB873374: Microsoft GDI+ Detection Tool
KB884883: Security Update for Windows XP v8
KB885250: Security Update for Windows XP
KB885626: Critical Update for Windows XP
KB885835: Security Update for Windows XP
KB885836: Security Update for Windows XP
KB886185: Critical Update for Windows XP
KB888113: Security Update for Windows XP
KB888302: Security Update for Windows XP
KB890046: Security Update for Windows XP
KB890175: Security Update for Windows XP
KB890830: Malicious Software Removal Tool v1.8
KB890859: Security Update for Windows XP
KB891781: Security Update for Windows XP
KB893066: Security Update for Windows XP
KB893086: Security Update for Windows XP
KB893756: Security Update for Windows XP
KB896358: Security Update for Windows XP
KB896422: Security Update for Windows XP
KB896423: Security Update for Windows XP
KB896428: Security Update for Windows XP
KB896727: Cumulative Security Update for IE6 for Windows XP SP2
KB899587: Security Update for Windows XP
KB899588: Security Update for Windows XP
KB899591: Security Update for Windows XP
KB901214: Security Update for Windows XP
And of course around 72 registry tweaks which improve speed, appearance, functionality and security!