Do You Lose the Good Deeds Done before Becoming Muslim ?

Hakim bin Hizam said, "O Allah's Apostle! I used to do good deeds in the
Pre-lslamic period of Ignorance, e.g., keeping good relations with my Kith
and kin, manumitting slaves and giving alms. Shall I receive a reward for
all that?" Allah's Apostle (Sallallahu 'Alaihi Wa Sallam) replied, "You
embraced Islam with all the good deeds which you did in the past."

Volume 3, Book 34, Number 423