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#11
The driver I linked to contains the RAID and ACHI drivers and is can be installed fine from within Windows. You can download a exe version, Download Center, but it will install the program as well that is not really necessary but can be beneficial for RAID setups.
Is your SATA controller set as ACHI in the BIOS?
If you can tell us the Vaio model we could look a little deeper into it.