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April 4, 1975
On this day Bill Gates founded Microsoft this would later become one of the most famous company. -
August 24, 2001
This was when windows XP was released having 400 million copies sold. -
July 22, 2009
Windows 7 was released selling 450 Million Copies. -
July 29, 2015
Windows 10 was released and had 200 million sold copies in 2016.