Hi need your experts' advice. I have just reformatted my drive and clean installed the XP Pro SP2. After installed some of the common softwares(eg. Offices, Acrobat reader, Quicktime...) the computer just won't shut down by itself. It always halt at the screen shows Windows is Shutting Down.... thanks.
More aboutwindows shut issue
See if ACPI is enabled.
Start - Control Panel - Performance & Maintenance - Power Options.
Click APM tab.
By the way, my system is relatively old though: Athlon 900MHz Sis735 chipset mobo 128MB PC100 SDRam (1xPC100 + 1xPC133) 9GB HDD
November 14, 2009. A connected USB device such as a card reader may be causing the problem. Try disconnecting the device.