You’re not OP, and only two of the characters appear to be what is displayed.

What you seem to have linked are the words, “first release”, but I’m uncertain if the characters for “first” are even depicted in the picture.

Edit: You are correct. I’m the luckiest bastard ever.

Well it says ついに発売

Put it together it more or less means “(Windows 7) has finally been released/started sale”