Windows 10 includes the "Windows Sonic" spatial sound provider for free, but Dolby Atmos requires the Dolby Access app from the Microsoft Store. For Home Theater:

Many manufacturers (Lenovo, ASUS, Acer) provide specific Realtek audio drivers that include Dolby DAX3 or Dolby Atmos integration for free. Checking your laptop’s specific support page is the most common way to "unlock" it. Modified Drivers:

Many users search for "cracks" because their motherboard or laptop technically supports Dolby technology, but the software isn't active. OEM Drivers:

files or "activators" found on torrent sites claiming to crack Dolby Access. Since Dolby Access is a UWP (Microsoft Store) app, it is deeply integrated with Windows Licensing. Most "cracks" for it are actually malware or info-stealers disguised as audio tools. Are you trying to enable this for a home theater setup or just for a standard pair of headphones