A fresh window install would be best. Installing Win7 should only take about 15 minutes with a SSD. Since you already cloned it, and if you want to forgo a fresh installation, shut down and remove the main power cord to power supply from he wall, disconnect old drive, and connect new SSD to primary SATA port, and its power cable to the power supply. Then reconnect power cord from the wall. Then restart and get into the bio to make sure it sees the SSD, boot from it and see if its working. But keep the old data just in case you have problems.