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May 26th, 2014 11:00

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!

105 Posts

May 26th, 2014 12:00

Switch from BIOS to UEFI, then install Windows 8.

Tutorial: Upgrade MBR boot disk to EFI boot disk.

2 Posts

May 31st, 2014 08:00

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?

9 Legend

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87.5K Posts

May 31st, 2014 09:00

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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