Article ID: 313859 - View products that this article applies to.
This article was previously published under Q313859
When you try to uninstall Windows XP by using the c:\windows\system32\osuninst.exe command, you may receive the following error message:
Setup can not uninstall Windows XP because the necessary registration information is missing.
This problem can occur for either of the following reasons.
To resolve this problem:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
(http://support.microsoft.com/kb/307654/EN-US/ )HOW TO: Install and Use the Recovery Console in Windows XP
(http://support.microsoft.com/kb/229716/EN-US/ )Description of the Windows 2000 Recovery Console
(http://support.microsoft.com/kb/307545/EN-US/ )How to Recover from a Corrupted Registry that Prevents Windows XP
(http://support.microsoft.com/kb/303661/EN-US/ )Uninstall Windows XP and Revert to a Previous Operating System