Please check the list below to make sure that you have the additional hardware(s)/ software.
Check system configuration requirements
HP recommends that the PC meets the following Windows XP system requirements before attempting to upgrade. If the PC does not meet the minimum system requirements, upgrade the hardware to meet the requirements before attempting an upgrade to Windows XP.
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Computer with 300 megahertz (MHz) or higher processor clock speed recommended; 233-MHz minimum required; Intel (R) Pentium (R) / Celeron (TM) family, AMD K6/Athlon/Duron family, or compatible processor recommended
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128 megabytes (MB) of RAM or higher recommended (64 MB minimum supported; may limit performance and some features)
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1.5 gigabyte (GB) of available hard disk space
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Super VGA (800?600) or higher resolution video adapter and monitor
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CD-ROM or DVD drive
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Keyboard and Microsoft mouse or compatible pointing device
I hope this helps you.