On platforms like GitHub, "fixed" often refers to scripts (like KMS activators ) or lists of Generic Volume License Keys (GVLKs) that have been updated to work with newer versions of Windows (like Windows 10 or 11) or to bypass specific Microsoft security checks.
Read the README.md . A legitimate "fixed" script (if such a thing could be legitimate) will contain only code—no .exe files. Look for KMS_VL_ALL_AIO.cmd . microsoft office 2013 product key github fixed