: You typically need to join the GHTV Reloaded Discord to get the necessary files and configuration settings.
If you own the physical guitar, you likely have the physical disc. However, digital versions were once sold on the PlayStation Network and Xbox Marketplace. Since the shutdown, these listings have been delisted. Guitar Hero Live -Normal Download Link-
: You will need a Guitar Hero Live USB Dongle (the Xbox 360 version is the most compatible with PC) to connect your guitar controller. : You typically need to join the GHTV
Legal Note: I cannot provide a direct .exe link here because the copyright is still owned by Activision/FreeStyleGames. However, searching for "GHL Customs Installer" will lead you to the community forum where the game client is linked. Since the shutdown, these listings have been delisted
However, you can still play the game's unique 6-fret content on PC through community-driven projects. Most Reliable PC Alternatives
Official "normal" download links for Guitar Hero Live are no longer available because the game's digital versions were delisted following the on December 1, 2018. The mobile iOS version was removed from the App Store in June 2018, and standard console versions (PS4, Xbox One, Wii U) typically require a physical disc because the game was originally bundled with its proprietary six-button guitar controller.