Crimson 5.11 WHQL for gcn
http://support.amd.com/en-us/download/desktop?os=Windows+10+-+64

Crimson 5.11 BETA for pre-gcn
http://support.amd.com/en-us/download/desktop/legacy?product=legacy3&os=Windows%2010%20-%2064

i had to install beta on my laptop for 7600G (pre-gcn) and WHQL on my desktop for HD 7970 (gcn 1.0)