PLEASE ANSWER THIS ??? ??? ???
answer what?..there is no question
aha … you mean the poll above, easier to see if you write som info in your post so we know what too look for 
what will happen if i insert an internet security license file to the Avast premiere? will it be downgraded to INternet security?
Question has been answered many times already.
It should convert, but advised is to perform a clean install of the version you are having a license for.