Sometimes you need the SID of a user or group. For example if you want to set permissions with icalcs in multilanguage environments. icacls needs as input the group name or the SID. If you want to set permission for the builtin groups you have to specify the group name in the current language of the operating system, i.e. “Users” for en-US and “Benutzer” for de-DE. The better choice is the SID, the SIDs for builtin groups are always the same.
Continue reading Windows: How to determine the SID of a User or Group