https://support.microsoft.com/en-us/kb/902093
http://www.bonusbits.com/wiki/HowTo:Manually_Activate_Windows_with_KMS
https://technet.microsoft.com/en-gb/library/jj612867.aspx
https://grok.lsu.edu/Article.aspx?articleId=16651
https://saltwetbytes.wordpress.com/2012/07/30/resolving-a-product-key-not-found-error-on-a-ksm-client-on-windows-2008/
Blu-ray won’t play? Have Comodo Firewall running. Disable it, let the Blu-ray load, enable firewall again. Appears the two don’t get along.