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goodwinds
Paper Tape
Posts: 1
Registered: ‎12-26-2018
Location: IT
Views: 166
Message 1 of 3

Secure Boot: How To Enable After Clean Windows Installation

Hello, I just received a new T480s. I immediately swapped the standard 128 GB SSD with a new 1 TB NVMe SSD; I needed to performa a new and clean installation of Windows 10 from the original ISO downloaded from Microsoft. In order to complete the initial setup I had to disable Secure Boot.

 

Now I would like to enable Secure Boot again but, if I do it, I am unable to boot Windows 10. I need to disable it in order to perform Windows boot.

 

What am I doing wrong? What do I need to do to enable Secure Boot again?

 

Thanks

Guru
Posts: 617
Registered: ‎12-30-2017
Location: PL
Views: 163
Message 2 of 3

Re: Secure Boot: How To Enable After Clean Windows Installation

Which partition table do you use - MBR or GUID (GPT)?

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Omiyatei1
Punch Card
Posts: 9
Registered: ‎09-30-2018
Location: JP
Views: 115
Message 3 of 3

Re: Secure Boot: How To Enable After Clean Windows Installation

Does your clean installation image contain KB4467691?

There was a post that KB4467691 somehow bother SecureBoot and some workarouds are mentioned.

See refer to Thinkpad L440 hanging at boot due to KB4467691/SecureBoot conflict .

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