Often if the BIOS has the SATA -> AHCI you'll have this problem, the simplest is the run 'Fix it' and have it correct the Start values. BIOS -> AHCI <=> Start = 0 and BIOS -> IDE <=> Start = 3.
Fix It -> http://support.microsoft.com/kb/922976
Registry values affected:
Example of 'BIOS -> AHCI <=> Start = 0'