topic Re: Authorization and de-authorization in ArcGIS Desktop Installation Support Questions https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855950#M2926 <HTML><HEAD></HEAD><BODY><P>Thank you Alana</P></BODY></HTML> Fri, 19 Jan 2018 17:12:17 GMT Pieterdu_Plooy5 2018-01-19T17:12:17Z Authorization and de-authorization https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855948#M2924 <HTML><HEAD></HEAD><BODY><P>Hi guys</P><P></P><P>I just want to confirm something.&nbsp; I use a Personal Use License of 10.5.1. I have to format my pc.&nbsp; Is it right that I need to de-authorize before formatting and then authorize after formatting and re-installing?</P><P></P><P>And can I then install 10.6 over the 10.5.1 install, or can I just install, and authorize with the 10.5.1 authorization? (Same machine, just formatted).</P><P></P><P>Regards</P><P>Pieter</P></BODY></HTML> Fri, 19 Jan 2018 16:35:05 GMT https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855948#M2924 Pieterdu_Plooy5 2018-01-19T16:35:05Z Re: Authorization and de-authorization https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855949#M2925 <HTML><HEAD></HEAD><BODY><P>You are correct.&nbsp; Deauthorize the license before formatting the machine.&nbsp;</P><P></P><P>If you have access to 10.6 downloads, then yes you can either install over 10.5.1 or install 10.6 fresh.&nbsp; The code should be valid for both.</P></BODY></HTML> Fri, 19 Jan 2018 16:45:23 GMT https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855949#M2925 AlanaBaker3 2018-01-19T16:45:23Z Re: Authorization and de-authorization https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855950#M2926 <HTML><HEAD></HEAD><BODY><P>Thank you Alana</P></BODY></HTML> Fri, 19 Jan 2018 17:12:17 GMT https://community.esri.com/t5/arcgis-desktop-installation-support-questions/authorization-and-de-authorization/m-p/855950#M2926 Pieterdu_Plooy5 2018-01-19T17:12:17Z