First, make sure you really want to do this. Choose between Native Mode and Mixed Mode
https://technet.microsoft.com/en-us/library/bb632431.aspx Second, review the (quite detailed) checklist Administrator Checklist: Migrating a Site to Native Mode
https://technet.microsoft.com/en-us/library/bb632727.aspx
For most installations, you will have to do the following 1. Create a custom web site Configure Custom Web Sites for Configuration Manager Sites
https://technet.microsoft.com/en-us/library/bb693482.aspx Configure a Configuration Manager Site to Use a Custom Web Site
https://technet.microsoft.com/en-us/library/bb693662.aspx 2. Create the necessary PKI Infrastructure SCCM 2007 PKI with Windows Server 2003 CA
https://technet.microsoft.com/en-us/library/bb694035.aspx SCCM 2007 PKI with Windows Server 2008 CA
https://technet.microsoft.com/en-us/library/cc872789.aspx 3. Configure a Fallback Status Point (less secure, but really useful) Create a Fallback Status Point in Configuration Manager
https://technet.microsoft.com/en-us/library/bb680830.aspx 4. Switch to native mode Configure the Site Server with its Site Server Signing Certificate
https://technet.microsoft.com/en-us/library/bb680769.aspx Specify the Root Certification Authority Certificates for Operating System Deployment Clients
https://technet.microsoft.com/en-us/library/bb632596.aspx Migrate the Site Mode from Mixed Mode to Native Mode
https://technet.microsoft.com/en-us/library/bb633152.aspx
——————-
Thanks,
Joan Crawford – "I, Joan Crawford, I believe in the dollar. Everything I earn, I spend."