Authorizing your software
If you intend to use ArcGIS for Desktop Single Use, you must authorize it first.
Requesting an authorization file
There are several ways to authorize ArcGIS for Desktop Single Use:
The recommended process is to authorize ArcGIS for Desktop Single Use over the Internet by selecting the relevant product and clicking Authorize Now in ArcGIS Administrator after the installation is completed. On the second panel of the Software Authorization wizard, select the default option Authorize with ESRI now using the Internet. If authorizing offline, select the Authorize at ESRI’s Website or by email to receive your authorization file option in the Software Authorization wizard and follow the instructions.
Authorization requires the authorization numbers (similar in format to ABC123456789) provided by Customer Service. Visit customers.esri.com for more information.