I was comparing my notebook performance with other and then I found that antimalware service executable is consuming its CPU (50% or more when computer is idle).
I've already tried: Reinstalling windows 10, search for malwares with malwerebyte, clean the registry, delete all scanning tasks in the task manager...nothing solved this. The fan is always in max, temp reaching 90C all the time. Drivers seem to be updated (Dell utility).
Thank you in advance for your help!