A simple way to fix a bug that bothers old processors..
How to Fix ALT+TAB Freeze Issue
Thanks to the community and devs involved in the solution, I’m summarizing here what is needed to fix the problem.Locate your Engine.ini file, which should be found in your ConanExilesInstallPath>/ConanSandbox/Saved/Config/WindowsNoEditor/Engine.ini folder.
C:/Program Files (x86)/Steam/steamapps/common/ConanExiles/ConanSandbox/Saved/Config/WindowsNoEditor/Engine.ini
Edit it in notepad, and add the following to the end of the file: