Check this article by Microsoft, which explains how to deal with your problem or a similar one: http://www.microsoft.com/resources/documen...kd_tro_evwd.asp If it doesn't help you, keep searching the MS Windows XP help area and you could find very helpful instructions. Also, run Google searches under REPAIRING A DAMAGED WINDOWS-XP or WINDOWS-XP BOOT ERROR or any other phrasing of the same idea.