Having problems trying to install Windows server 2012 R2 OEM Reseller Option Kit (ROK) on your HP Proliant ML 10 Gen 9 server? Me too! Brand new server, new install using the ROK software supplied, boot from the DVD then a few screens later I would get the following “Failed BIOS Lock” error message.
Luckily I found the following article on the HP enterprise support site that confirmed it was an issue with the installation media not the server.
If your installation media matches one of the many listed then the solution is to fill out some forms and they’ll send you some new DVD’s.