[解决]安装Windows2003 sp2提示产品密钥无效的解决方法：
Microsoft Windows Server 2003的盗版用户,在安装Microsoft Windows Server 2003的Windows Server 2003 Service Pack 1(Windows 2003 Sp1)或者Windows Server 2003 Service Pack 2(Windows 2003 Sp2补丁的时候,有可能会弹出窗口提示一下内容 "Windows Server 2003 Service Pack 1 无法安装。用来安装 Microsoft Windows 的产品密钥可能无效。有关接收到此错误消息的原因和如何解决此问题的更多消息，请访问 www.howtotell.com。"的情况.
方法一：
要解决这个问题很简单,只要修改记录在注册表里面的Windows Server 2003产品密钥就可以了.大家可以把下面的把下面的代码保存成.reg注册表文件运行一下,就可以了.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersion]
"ProductId"="69713-640-9722366-45198"
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersion]
"CurrentBuild"="1.511.1 () (Obsolete data - do not use)"
"InstallDate"=dword:3f6c976d
"ProductName"="Microsoft Windows Server 2003"
"RegDone"=""
"SoftwareType"="SYSTEM"
"CurrentVersion"="5.2"
"CurrentBuildNumber"="3790"
"BuildLab"="3790.srv03_rtm.030324-2048"
"CurrentType"="Uniprocessor Free"
"ProductId"="69713-640-9722366-45198"
"DigitalProductId"=hex:a4,00,00,00,03,00,00,00,36,39,37,31,33,2d,36,34,30,2d,
39,37,32,32,33,36,36,2d,34,35,31,39,38,00,5a,00,00,00,41,32,32,2d,30,30,30,
30,31,00,00,00,00,00,00,00,00,e5,3f,e9,6a,2c,ed,25,35,12,ec,11,c9,8d,01,00,
00,00,00,00,37,03,6d,3f,44,22,06,00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,31,32,32,32,30,00,00,00,00,00,00,00,dc,0f,
00,00,bf,4a,94,6c,80,00,00,00,15,18,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,34,79,ca,d7
"LicenseInfo"=hex:71,84,c7,56,a0,d6,10,6e,70,b4,9f,e9,10,1a,1e,7a,01,a4,41,09,
25,20,0e,80,83,80,1f,31,27,86,64,1f,31,dc,22,af,f7,7d,aa,e4,2a,b9,e5,e3,6c,
e2,01,69,85,70,91,be,a7,9f,95,e5
方法二
先点击这里下载序列号更换工具。
更换完下面的序列号以后就可以更新SP2的补丁了。
Windows Server 2003 简体中文企业版，真正免激活。
CD-KEY：JB88F-WT2Q3-DPXTT-Y8GHG-7YYQY
安装序列号：JCGMJ-TC669-KCBG7-HB8X2-FXG7M
使用这个序列号 Windows Server 2003 可在线升级!
如果已经安装了 Windows Server 2003 Enterprise Edition 3790 操作系统，安装时使用了 JB88F-WT2Q3-DPXTT-Y8GHG-7YYQY 这个安装序列号或其他的号，正常激活系统但不能在线升级的，你可以不需要卸载掉原来的操作系统重新使用 JCGMJ-TC669-KCBG7-HB8X2-FXG7M 进行安装了，就立即可以实现在线升级了！