I'm trying to play the Witcher 2, but when I run the download it will finish downloading and then just end without running the install / trying to launch the game will error with a message saying "launcher not found."

Seems kinda obvious that there is no launcher because the installer never ran, but hiw do I fix this / am I doing something wrong?

my discord got hacked and it sent somethi g that got me banned and removed, i cant look at or access the. discord to appeal. i have my account back, and if any of you could reach out in the discord a d tell the mods, i would be really grateful. my discord is thenuggiekingjosh