As suggested, I updated the registry in accordance with the forum post in the OZC technology forum. I have one complaint: it is not really clear what "msahci" registry key is, or what function it performs, let alone what changing the start value from 3 to zero does in the real world. For all I know this step could be a joke, but perhaps someone with knowledge of what "msahci" can enlighten us.
Anyway, after I changed the registry, I rebooted, and then made the following change to the BIOS (which you get to by pressing the Delete key after startup). My next step was to go to:
BIOS-> Integrated Peripherals-> OnChip SATA Type->AHCI
After saving the change, I reboot (once more), but the Operating System will not load and I am left with the following message:
"BOOTMSGR is missing"
One question here: how do I slow down the split second display of the "POST" screen so that I can read it?
The reason why the BOOTMSG is missing is that my computer has moved my Solid State Disk (SSD) from being first in line in terms of boot priority to being third (this maybe caused by switching to ANCHI), so I rebooted once more and executed this additional step:
BIOS->Advanced BIOS Features->Hard Disk Boot Priority
where I modified the list of boot devices so that my SSD is the first boot device once again.
Rebooting one more time, the operating system comes up, much to my delight. Voilà! Windows Experience Index has changed for the better. Now my Primary Hard Disk is shown that was the lowest performing component (7.1) has not become the highest performing component (7.6) in my PC whose overall performance is now 7.4 (due to my graphics). Now I now why I sunk my hard earned cash to by a SSD.
Many thanks for your help, I am most pleased with the result