Unable To Help Me Get Into My PC

Recently, I visited a site that claimed it would allow me to download more RAM onto my PC so that I could play the critically-acclaimed MMORPG Final Fantasy XIV Online, but it actually downloaded a ransomware virus onto my computer. This locked me out of my PC, so I tried to search for a key to get back in. This website was the first result, but unfortunately it sells video games, not keys. Pretty misleading name, but customer support was very patient and polite so I will give the service some points for that.