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CanConnor
1 Copper

Switching from Legacy to UEFI for Windows 8

Hello,

My Latitude e5430 (non vpro) comes with Windows 7 x64 and I already own an upgrade licence for Windows 8 Pro. BIOS is curently set to Legacy.

I want to install Windows 8 with UEFI, but I since it is upgrade only, I guess I will have to install Windows 7 on UEFI and then upgrade.

I don't know what to do and I need your help..

Thanks!

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4 Replies
8 Krypton

RE: Switching from Legacy to UEFI for Windows 8

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Raczo
2 Iron

RE: Switching from Legacy to UEFI for Windows 8

Switch from BIOS to UEFI, then install Windows 8.

Tutorial: Upgrade MBR boot disk to EFI boot disk.

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CanConnor
1 Copper

RE: Switching from Legacy to UEFI for Windows 8

Thank you for the link. However, the thread also doesn't provide a tested solution. There are two things I need to clarfiy:

1. Do I have to install Win7 first in order to be able to install my upgrade licence?

2. If so, how can I boot my Win7 DVD in EFI mode?

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8 Krypton

RE: Switching from Legacy to UEFI for Windows 8

1.  Yes.

2.  It has to be done from a GPT-setup flash drive (you cannot do it from a DVD).

The link had instructions for preparing a GPT install flash drive from a Windows 7 ISO file.

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