Go into your BIOS and make sure your SATA Controller is set to ACHI or ACPI mode. You probably installed Win 7 when the BIOS was in ACHI mode and now the SATA is in IDE mode it is binning it at a driver level.
Thankyou! It worked I'm now back on the computer! Everythings fine but I'm missing a few desktop icons, nothing major. Thankyou for fixing this stressful problem!