Cambiar el nombre del sitio principal de Configuration Manager. Once you have installed your Configuration Manager Primary Site it is not possible to change its name. But what if you made a mistake or your company changes its naming conventions?? Bien, there is one way to change it. First of all stop the SMS_EXECUTIVE Service. After that open, the site control file (<Installation directory>\Microsoft Configuration Manager\inboxes\sitectrl.box\Sitectrl.ct0) and search for BEGIN_SITE_DEFINITION. Close to that you will find your Primary Site name and you can change it (do not change anything else!!). After this save the file and start the SMS_EXECUTIVE Service again. Then after a few site refreshes your Primary Site name will be changed.
In some cases it could be possible that you also have to change the value of the reg key:
HKLM\Software\Microsoft\SMS\Identification
NOTA: Keep in mind that editing the sitectrl.ct0 is not supported by Microsoft!