Hi Marcos,
I have AntiVirus on a Gigabyte motherboard and have the App Center installed.
I renamed the Program Files/ESET folder in safe mode, restarted in normal mode, renamed the ESET folder back to the original name, uninstalled, restarted, reinstalled, restarted, changed to the pre-release updates and updated, and restarted to test. Everything worked well. I also ran a smart scan last night and it worked well. I never did turn of the advanced memory scan.
--Thanks, --Robert