20, because he was born in 1955 and dropped out of school in 1975.
Bill Gates started studying at Harvard University in 1973. He completed his freshman and sophomore terms at Harvard, and left in his junior year.
Complete details are very hard to find, but he stayed for aproxx. 1 year.
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He went to Havard to 1972 to 1975!
Bill Gates attended Harvard but did not graduate. He dropped out so he could start his career in computers.
Bill Gates did not drop out of High School, he successfully completed his High School education in 1973. However, he did drop out of Harvard University in 1974.
bill gates dropped out in his first year at the age of 18
Bill Gates left college to work full time on Microsoft. His unique licensing concept created a huge windfall and he is now one of the riches people in the world. But he finished high school and had several years of college.
Bill Gates is still alive.
19Bill Gates was 19 when he dropped out of Harvard and founded Microsoft in 1975.
Bill Gates is 58 years old (birthdate: October 28, 1955).
Bill Gates was born October 28, 1955. (55)
Bill Gates was 38 years old when he married Melinda French in 1994.
Bill Gates was 51 (in 2006) he quit microsoft
Bill Gates was 30 years old when Windows 1.0 was first released.
Bill Gates' mother, Mary Maxwell Gates, was born on the fifth of July in the year 1929. She was 26 years old when she gave birth to Bill Gates.