: This implies the OS has been modified to bypass the standard Microsoft activation process, usually via scripts or built-in tools.
: This is the 64-bit architecture, which is essential for modern computing to utilize more than 4GB of RAM and run 64-bit applications. Windows 8.1 Pro VL -x64- Pre-Activated IE11 MUL...
: The professional tier of the OS, offering features like BitLocker data protection, Remote Desktop, and Domain Join, which aren't found in the standard Home edition. : This implies the OS has been modified