My notebook has a ordinary 500GB HDD boot with Windows 10 and a small SSD onboard (24GB) that I intent to use as cache (since Samsung has discontinued ExpressCache). I have to change some settings and I saw AHCI option in BIOS setup: Auto/Manual and Manual can be Enabled/Disabled.

The only combination that works is Manual, Disabled. Otherwise Windows 10 stops in a blue screen - inaccessible device error.

Is this AHCI good for me? How can I make Windows 10 boot with AHCI enabled in this case?

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