How to make cpu admin from guest?

ok i download this program to change ssid then it said restart cpu i did then when it did i log on to win 7 and it made me aguest account it said under name and there are no admin plz help i tried every thing i made batch tried to system restore but access denied. help.How to make cpu admin from guest?Use ophcrack to get your admin password back

better first name

web hosting domains