remove sata cable in old drive from port in motherboard
connect sata cable from SSD to that port (port0)
see if machine boots with just the SSD (this will tell you if you have cloned the old drive to the SSD correctly).
if Ok shut down and connect the Sata cable to the next sta port (port1)
should boot again from SSD drive and you can now do what you wish with old drive (delete windows or even reformat it.