Download the SATA driver from ftp://126.96.36.199/drivers/Intel/SATA/RapidStorage_Win8-64_Win8_Win7-64_Win7(v188.8.131.520).zip
and install it.
Right click Computer, choose Manage, then Disk Management.
Right click the partition/volume you want to format and choose format. If not working, click delete and create a new one.
See if it does work this way. Make sure you save the necessary data from the partition you want to format and to not format/delete a wrong partition/volume. All data on it would be lost.