enable AHCI mode

I Just found and tried this, it's so simple and works great. No need to change it in BIOS and reinstall OS or do the regedit method.

To change IDE/SATA mode to AHCI from with in windows.

Run msconfig (right click far left bottom corner of desktop then left click run, type msconfig).

Click boot tab, mark safe boot, restart, change to AHCI in BIOS, boot, Windows boots in safe mode.

Run msconfig again, boot tab unmark safe boot, restart PC.

Reference link:.http://superuser.com/questions/471102/change-from-ide-to-ahci-after-installing-windows-8

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