Problem with a digital signature on a Windows installation DVD

I bought a new laptop which has Windows 8.1, but I rather have Windows 7. This is why I bought a new copy of Windows 7 Home Premium, on a DVD. I think it's authentic. The DVD has holograms fantasies around the hub, which would probably be difficult to simulate. Unfortunately, the installation does not work. He gets regarding copying the files from the DVD and compression of the CAB files. The computer restarts and the installation is stopped due to an error. It seems that the file C:\~WINDOWS\~BT\System32\winload.efi has a digital signature that can be verified. The file must come from the DVD. The same file in the data Windows 8.1 is a part of Microsoft, and it has a valid digital signature. How does it all, that the same file from the DVD is not recognized by Microsoft?


It is possible, in the F8 advanced boot options, key to select an option 'Disable driver signing checking', but I can't make it work. The setting is lost when the system reboots and no amount of pressure on the F8 key it will answer. In msdn some additional ways are described, to disable driver signing checking, but I'm not confident about their use. In any case, I wouldn't tinkering like that, with a DVD so-called Microsoft authentic.


Can someone help, please?

Hello

To answer your question, windows $. ~ BT is a startup folder temporary created during the installation of Windows that has the installation log entries.
As for the freezing of the installation, I believe that the problem is with your media so please check if the media is corrupt.
You try to install on another computer for cross-checking if the media is corrupt.

Try to perform a custom Setup to disconnect all external devices.

Are you dual boot Windows 7 and 8.1?

Please post with the State of the question.

Tags: Windows

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