Problem: GTAV.exe crashed when given focus in both windowed and fullscreen-mode.
After countless hours trying to troubleshoot the problem, installing new drivers for my graphics-card, disabling sound-drivers, unplugging periphials, I decided to debug the game using Visual Studio 2015.
The callstack gave me the answer.
Razer tried to inject their RzStats into the game, to collect in-game-data for mouse-heatmaps and keyboard-statistics.
The solution for this is quite simple, uninstall the fucking thing.
The uninstaller for Razer Synapse stats is located in:
After uninstalling it, GTA V works once again.
I’m using Razer Deathadder 2013 and Blackwidow Ultimate 2013.
Source for disabling stats-manager: https://www.reddit.com/r/razer/comments/2nzqhl/how_do_i_make_razer_to_disable_stats_manager/cmimk0r/