Zwift app starting by itself

How do I stop swift app from starting by itself when my pc is in sleep mode?

Hire an exorcist?

But more seriously, what system and what OS? How do you mean by Zwift starting by itself?

I may have figured it out. On settings I turned off auto-start on start up. I wasn’t aware that it was turned on.

You meant the Zwift launcher then. The Zwift launcher lets Zwift download updates in the background. The updates still needs to be installed when Zwift starts up, but it helps if you have a slow connection.