The red sign still remains in the A-balloon. I changed the settings of Avast and RPC to automatically and restarted several times but the sigen will not disappear. Is my computer still safe and how to fix this??
You should not need to make any changes to avast or rpc process. Avast protection should automatically be active from the moment you restart after installing it.
Right-click the balloon icon and select the bottom option “Start on-access protection”. If a message pops up with an option something like ‘make the change permanent’, answer YES.
Thanks for your reply, tried it but red sign stays! HELP!!!
Then uninstall,boot,install,boot!
Good luck! 
Thanks again, will try it!
Poblem solved