Hi , Here is the Steps for XP Run CMD Write DEBUG then df000:fff5 OR for others I didn't do "Debug" but I've pulled it from a similar source. Start > Run > Accessories > System Tools > System Information. It'll be under System Summary right where the Bios is.
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with the title Know the Age of your Computer . You can bookmark this page URL https://araucari.blogspot.com/2012/10/know-age-of-your-computer.html. Thanks!