Support for Windows 8.1 officially ended on January 10, 2023 . Pre-activated versions may fail to receive critical security patches, leaving your system vulnerable to modern threats.
While these versions are often found on file-sharing sites, they carry significant security risks and legal implications. What "Pre-Activated" Means Windows 8.1 enterprise x64 pre activated
Some versions use .bat or .cmd scripts that run with administrator privileges to trick the system into believing it is genuine. Support for Windows 8