I had my computer suddenly shutting down whithin first 30 minutes after starting it up. When I restarted it again after the power down it worked normally till the rest of the day. But next day I saw the same problem happening. It was happening for about two weeks . I was quite annoying and started thinking that it is some kind of hardware failure- maybe power supply fault. Luckily the Internet Explorer 8 was available for download from a Microsoft site. During the download process threre was some check up for malicious programs on my computer. After the installation that Sudden XP Shutdown problem disappeared.

and your point here is what? That the malicious program removal app from microsoft works!! Change Is Good http://www.citizenlink.org/Stopligh...

Windows XP is a line of operating systems produced by Microsoft for use on personal computers, including home and business desktops, notebook computers, and media centers. The name "XP" is short for "experience".[3] Windows XP is the successor to both Windows 2000 Professional and Windows Me, and is the first consumer-oriented operating system produced by Microsoft to be built on the Windows NT kernel and architecture. Windows XP was first released on 25 October 2001, and over 400 million copies were in use in January 2006, according to an estimate in that month by an IDC analyst.[4] It was succeeded by Windows Vista, which was released to volume license customers on 8 November 2006, and worldwide to the general public on 30 January 2007. Direct OEM and retail sales of Windows XP ceased on 30 June 2008. Microsoft continued to sell XP through their System Builder Channel (smaller OEMs who sell assembled computers) until January 31, 2009 [5][6]. XP may continue to be available as these sources run through their inventory or by purchasing Windows Vista Ultimate or Business and then downgrading to Windows XP.