Windows 8 to 8.1 Pro Upgrade SecureBoot Error

boot windows windows-8 secure-boot

Solution 1:

I asked this Microsoft and the answer was, that they show this watermark to make sure that OEMs don't release new systems without having SecureBoot turned on.

Solution 2:

I have also this problem. And i have fixed the problem You can find your answer on this link: Windows 8 to 8.1 Pro Upgrade SecureBoot Error

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