I have just upgraded my HP Pavillion P7-1587cb PC (desktop) from its preloaded windows 8 to the new windows 8.1 release. My PC is maxed out with internal memory, 4 hard drives (2 internal and 2 external) a Netgear Wireless LAN, added a 2nd Blue Ray read/write DVD, and have a HP Officejet 7310xi all-in-one Printer connected. Everything was working as well as windows 8 would let it work until I installed the 8.1 version. I do not want secureboot enabled, and have disabled it (BIOS as well). I am trying to find out if anyone knows how to make this watermark disappear short of enabling secureboot, which I don't want. Seems to me there should be someplace (registry maybe) that I can remove the instruction causing it to appear.