Re: Change Invalid XP to Older XP Valid System

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance



Paul wrote:
I had my system rebuilt by a company that is no longer in business. I now find that the XP Pro that is loaded is not genuine according to Microsoft.


How, precisely, did you establish that your WinXP Pro license is not genuine? If the OS failed validation at Microsoft's "Windows Genuine Advantage" site, it may well still be perfectly legitimate. The automated process used at that web site is deeply flawed. I've one WinXP Home machine that passes validation when it's performed manually, but consistently fails the validation check during software update/patch installations. And my WinXPx64 system isn't even recognized as a Microsoft operating system by the WGA validation process. Both licenses are legitimate. To gather more information on the validity of your license, start here, selecting the second option:


How to Tell
http://www.microsoft.com/resources/howtotell/ww/windows/default.mspx


I do have a genuine XP Pro CD but it is SP1 and if I try to overwrite the XP Pro SP2 that is loaded on my system then a failure occurs.


This error message arises because your current WinXP Pro installation is at a higher Service Pack level than is the WinXP Pro installation CD you're trying to use. You must either uninstall the service pack(s) from the WinXP Home installation (not an option if it came pre-installed), or use a WinXP Pro installation CD with the same (or higher) service pack incorporated. It's quite easy to create an installation CD with the latest service pack (SP2) slipstreamed into the installation files:


How to integrate software updates into your Windows installation source files
http://support.microsoft.com/default.aspx?scid=kb;en-us;828930


SlipStreaming WinXP
http://www.webtree.ca/windowsxp/slipstream.htm


Is there any way that I can reload my genuine Windows XP Pro and then run my genuine SP2 CD without having to completely clear my computer?

If it really turns out to be necessary, You use a _legitimate_ retail or OEM full license of WinXP Pro SP2 to perform a repair (a.k.a. in-place upgrade) installation, using the new CDs and Product Keys.


How to Perform an In-Place Upgrade of Windows XP
http://support.microsoft.com/directory/article.asp?ID=KB;EN-US;Q315341


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Bruce Chambers

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Relevant Pages

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