I've been having this issue for a long time but I could manage to use "Dual Monitor Tools" to fix it. In almost every game (not all of them) with various resolutions and window modes, my cursor moves to the other screen when moving completely to one side. Only in Overwatch or Unreal Tournament, I don't have this issue.
Temporal fix was "Dual Monitor Tools" or "Cursor Lock" but seems that there was a driver update or something that made it stop working. I looked a lot to fix this but no solution still.
Graphics: AMD Radeon HD 7870 GHz Edition 2G D5
OS: Windows 10 Pro (64-bits)
I would appreciate any help!