Final answer:
Contrary to the statement which is false, AHCI should be activated before the OS is installed to prevent compatibility issues. It's a standard that improves SATA device performance but changing to it post-OS installation requires extra steps.
Step-by-step explanation:
The statement is actually False. Activating the Advance Host Controller Interface (AHCI) is typically recommended to be done in the system BIOS or UEFI settings before the Operating System is installed. AHCI is a technical standard defined by Intel that specifies the operation of Serial ATA (SATA) host controllers. It provides advantages such as support for hot plugging and Native Command Queuing (NCQ), which can improve the speed and efficiency of the hard disk drive (HDD) or solid-state drive (SSD). Enabling AHCI after the OS installation might cause compatibility issues or blue screens because the OS would have been installed using a different SATA controller mode, often the legacy Integrated Drive Electronics (IDE) mode.
For systems where the OS has already been installed without AHCI enabled, enabling AHCI often requires modifying the registry or reinstallation of the OS to ensure the proper drivers are loaded for AHCI operation.