Microsoft designed SLP 2.1 specifically for big manufacturers. A licensed OEM PC has three specific components burned into it:
The "48-in-1" designation refers to the total number of installable permutations contained within a single installation image (ISO). Instead of downloading separate discs for different computers, this image uses a unified installer to let users choose the exact version they need. The Architecture Split Microsoft designed SLP 2
The script matches the vendor name (e.g., Lenovo, ASUS, Toshiba, Acer) against an internal archive of digital certificates ( .xrm-ms files). Microsoft designed SLP 2