I don't face this problem using Kaspersky IS. I just exit this program when I run any CH's trainer.
Please read the first post on this page. Did you create those 2 exclusions? If you use a Bitdefender 2018 version, please disable the 'Advanced Thread Defense' module completely.
[Edited by moderator Taurusplopp, 9/15/2017 7:32:48 AM]
I just checked with the latest Kaspersky Internet Security 2018 version available with default settings and didn't even need any exclusion to start the trainer successfully.
Seems something else is blocking the trainer on your system.