We have answered the question as far as we could without more information (now provided) avast isn’t scanning for PUPs by default, you can enable this option.

However, be prepared to get alerts to which you can’t really don’t know much about, you need some knowledge of what is installed on your system, what it does and why it might be considered a PUP as outlined in my first reply.

As for the Tarma Installer, this may well have been installed with some other software, lots of hits when you search for it uk.search.yahoo.com/search?p=Tarma+Installer. Seems to be some consider it a PUP/spyware, but many legit download sites have it.