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How to set SATA configuration to AHCI
I have just finished migrating my win7 o/s to a new SSD.
Everything works fine. No problem booting up.
As a next step I wished to enable AHCI. First I check the two registry entries as described in this tutorial
https://www.sevenforums.com/tutorials/61869-ahci-enable-windows-7-vista.html
(page 1) and ensured that both Start entries were 0.
Rebooted and entered BIOS setup program.
Changed the SATA configuration to AHCI.
Checked the Boot order next. It absolutely refused the option to select the SSD (with O/S) as the first boot drive. In fact it does not display that drive anywhere in the boot list.
Only when I go back and change SATA configuration to IDE can I then select the proper boot drive.
Bottom line, no AHCI
Any suggestions?
PS I had first posted this question in the tutorial thread cited above; that is an older thread and got no response. Therefore please forgive this double posting.