Enable AHCI Mode Without Reinstalling OS, INACCESSABLE_BOOT_DEVICE Error
Watch this video to learn how to enable AHCI mode for a computer where an operating system has already been installed.
The SATA interface can operate in two modes, IDE and AHCI:
• IDE – a compatibility mode for older equipment and software. In fact, in this mode SATA capacity is no different from its predecessor, ATA (or PATA) interface;
• AHCI – a new mode for memory devices, where a computer can use all SATA advantages, the primarily higher speed of data exchange with SSD and HDD as well as hot-swapping of hard disks. When you activate AHCI mode, it increases the speed of access to files in memory devices and improves the overall performance of your computer.