Williams decided his next move would be attending and playing for Montgomery College-Germantown (at the time, each campus had separate athletic teams). While he was at MC, he grew 7 inches, becoming a 6’9 forward by his sophomore year.
His growth spurt and effective play at MC garnered the attention of Georgetown Hoyas head coach John Thompson, who offered Williams a scholarship. Williams averaged a double-double, with over 10 points and 10 rebounds per game in his first year at Georgetown, finishing his Georgetown basketball career with averages of 10.5 points and 9.3 rebounds per game. While at Georgetown, he played with NBA players Allen Iverson, Don Reid, and Othella Harrington.