Q. You receive 'Updates were unable to be successfully installed' when you try to install the .NET Framework 1.1 Service Pack 1 Update from the Windows Update site on Windows XP?

Microsoft Knowledge Base Article 922377 Describes an issue where the .NET Framework 1.1 SP1 Update cannot install on computers that are running Windows XP. The issue occurs when you try to install the update by using Windows Update. A resolution is provided.