These issues may occur intermittently and do not occur on Microsoft Windows 2000-based client computers.
Windows XP uses Fast Logon Optimization to process logons more quickly than previous operating systems, such as Microsoft Windows 2000. By default, Windows XP allows the logon to continue, even while Group Policy (including logon scripts) is still being processed.
Note A similar problem can be resolved if you enable the following policy:
Article ID: 831998 - Last Review: Mar 29, 2017 - Revision: 4