I downloaded BITCOIN-qt, but I do not know how to sync my coin with my computer. It appears as an attached image.
you downloaded
BITICOIN, not bitcoin, check again what you are downloading, they are different coin, bitcoin is the first legit one, the one you have is an altcoin, which si 100% dead because i never heard of that thing, prolly a clone of bitoin with sha256 algo but i'm not 100% sure