Getuid-x64 Require Administrator Privileges -

#include <stdio.h>
#include <unistd.h>
int main() 
    uid_t uid = getuid();
    printf("Real User ID: %d\n", uid);
    return 0;

The getuid system call does not require Administrator (Root) privileges to execute.

Reasoning:

Stop using Getuid-x64. The native Windows command to get your current user SID requires no admin privileges: Getuid-x64 Require Administrator Privileges

whoami /user

Or using PowerShell:

([System.Security.Principal.WindowsIdentity]::GetCurrent()).User.Value