Avast free Antivirus - wsc_proxy.exe How to stop it installing after update?

Dear Avast, i don’t know what this process do, but since back in 2016, when i saw this file for the first time appear, every time this file appears after some update i turn of self defense and i immediately delete all 3 files starting with “wsc”… i don’t want this files re-appearing after every update is it possible?

Thank you and one more question… I lately notice new process “aswEngSrv.exe” is it safe to delete this to?

https://forum.avast.com/index.php?topic=207621.0

https://forum.avast.com/index.php?topic=225164.0