Windows 7 or 8 PE preparation to boot on UEFI (in UEFI boot-mode as well) and non-UEFI PC's

I'd like to have custom Windows 7 or 8 PE, bootable on UEFI (in UEFI boot-mode as well).
Do I need to have Windows ADK installed on UEFI-computer to produce Windows 7 or 8 PE, booting in UEFI-mode on UEFI-computers?
Do I need to have Windows ADK installed on non-UEFI (BIOS)-computer to produce Windows 7 or 8 PE, booting in BIOS-mode on non-UEFI-computers?
Can I have non-UEFI PC to produce universal Windows 7 or 8 PE that would be booting in BIOS/UEFI mode depending on the computer it booting from and how to do this?
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dmitrij75Asked:
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David Johnson, CD, MVPRetiredCommented:
The standard windows pe iso can boot to either uefi or bios
Boot Windows PE in UEFI or legacy BIOS mode (Microsoft Technet Article)

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