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Below is a Microsoft article that explains the difference. &nbsp;SID's come from NT and are still used for backward compatibility. &nbsp;They are also not globally unique like a GUID.<br />
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<a href="http://technet.microsoft.com/en-us/library/cc961625.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/cc961625.aspx</a><br />

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Below is a Microsoft article that explains the difference.  SID's come from NT and are still used for backward compatibility.  They are also not globally unique like a GUID.

http://technet.microsoft.com/en-us/library/cc961625.aspx [http://technet.microsoft.com/en-us/library/cc961625.aspx]


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I don't know what the specific issues are, but you can fix it with a Win 2k3 tool: tranguid.exe /r<br />
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<a href="http://support.microsoft.com/kb/837374" rel="ugc nofollow">http://support.microsoft.com/kb/837374</a>
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I don't know what the specific issues are, but you can fix it with a Win 2k3 tool: tranguid.exe /r

http://support.microsoft.com/kb/837374 [http://support.microsoft.com/kb/837374]

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That was very smooth, Anhnt184. &nbsp;All you did was take the article I posted and copy the text. &nbsp;
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That was very smooth, Anhnt184.  All you did was take the article I posted and copy the text.  

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What is the different between GUID and SID? What problem can we have if we have computers with duplicate GUID or SID?
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What is the different between GUID and SID? What problem can we have if we have computers with duplicate GUID or SID?

GUID vs. SID

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.

Windows XP

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.