This download installs the Intel® Rapid Storage Technology RAID and AHCI (Advance Host Controller Interface) SATA (Serial ATA) Storage Driver for Windows. Hello, I am trying to install Ahci driver in windows 7. I found a article that you need to make a register change to get them to work. You go to hkey_local. Advanced Host Controller Interface. The Advanced Host Controller Interface ( AHCI) is a technical standard defined by Intel that specifies the operation of Serial ATA (SATA) host controllers in a non-implementation-specific manner. The specification describes a system memory structure for computer hardware vendors to exchange. I don't have the AHCI drivers and I'm not sure how to get them. I have tried the regedit options that I have found, but msahci doesn't exist in the registry and another option I found was already at its correct value. Installs the Intel® Rapid Storage Technology (AHCI) driver version 188.8.131.521 for Intel®. SATA AHCI Driver for Windows 10, 8.1, 8, 7, Vista, XP Nov. 06, 2018 / Updated by Bessie Shaw to Windows Driver Solutions SATA AHCI driver is crucial if you want to install Windows in AHCI mode instead I ran into the same problem while trying to do a fresh install of Windows 10 after having successfully upgraded a Win 7 system already in AHCI mode (1155 Gigabyte motherboard). I solved my problem by doing a fresh reinstall of Win 7, activating AHCI mode, then upgrading to Windows 10 on that fresh Win7 install. Both of AHCI and IDE are the modes in which a hard drive communicates with Windows 10, 7, 8 by SATA controller driver. However, compared with IDE, AHCI runs faster and possesses with more advantages, such as hot-plugging and native command queuing. This package installs the software (Intel SATA Controller AHCI Driver) to enable the following device. Device Name ----- Standard SATA AHCI Controller Device name in the Device Manager ----- Intel(R) 7 Series Chipset Family SATA AHCI Controller. AHCI specification for Serial ATA. The specification includes a description of the interface between system software and the host controller hardware. This specification is intended for hardware component designers, system builders, and device driver (software) developers.