Windows not genuine watermark

[z3r0aCc3Ss]

I am facing this problem since yesterday.
I installed 2 updates and on the next restart, I got this message.



Don't know how to remove this. My Win7 is genuine, obtained from unofficial MSDN Pro account. But still, its genuine with genuine key installed.
Any help? I tried some google solutions, but no use till now.

[Gogeta70]

Well if it's a legal copy of windows, just call microsoft tech support and see what they can do for you, i guess.

[eppik]

Happened to me 3 times yesterday, whenever I rebooted it disapeared, and after a few hours of usage a "you may have been victim of software counterfeiting" message box appeared and I got the watermark, then reboot and the same. Disabled Windows defender and left the pc on for 24 hours (till now) just improving my TeamSpeak3 Identy security level to 34 (so as not to leave 300W of idling waste all night) and its been watermark free for that long