"xtensa-lx106-elf-g++.exe: Access is denied" during compilation

I have this (and similar) intermittent issue on 2 different Pc's (Windows 10 latest builds) and I have tried a zillion different things such as disabling Anti Virus software etc but no luck, especially with one of my machines. I use Bitdefender Total Security.

I see a lot of similar issue reports but no real solution.

Anyone knows how to get rid of this very annoying issue ?

Many thanks, stay safe and healthy !

Tony