Behind Bill Gates' nerdy disposition was a man allegedly known for hosting wild naked pool parties with strippers.

The Microsoft founder is getting flak after sensitive details from a biography recently resurfaced, The List said.

In a report by The New York Post, it said that James Wallace, who authored the 1997 biography "Overdrive: Bill Gates and the Race to Control Cyberspace," characterized Gates as a "womanizer" when he was younger.

Gates reportedly indulged in the party life when he attended Harvard. According to Wallace, Gates "frequented Boston's notorious red-light district Combat Zone, with its porn shows, strip joints, and prostitutes." That was even after the billionaire married Melinda, based on the biography.

Gates' wild lifestyle was well known among his circle of friends, but newspapers like the New York Times kept mum on the issue in order to continue getting "spoon-fed stories," Wallace wrote in the biography.

The tech mogul was not faithful to Melinda and "liked to party" in the early days of their relationship, Gates' friend and former Microsoft executive Vern Raburn told Daily Mail.

More alleged details are coming out about the squeaky clean Gates. Among those are his alleged friendship with disgraced sex trafficker billionaire Jeffrey Epstein and his arrangement with Melinda that she allow him one weekend per year to be with his former girlfriend, Ann Winblad, the Toronto Sun said.

Melinda, who filed for divorce after 27 years of marriage, was "well aware" of Gates's womanizing even after they started dating, Wallace said.

Jill Bennett, another ex, described as Gates' "first serious girlfriend," said they separated because of Gates' fixation with working long hours.

Gates "wasn't just this little computer nerd. He did have a life back then," Wallace said.