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Windows 7: How to install W7 on existing W8.1 machine

18 May 2015   #1

W 8.1 64
How to install W7 on existing W8.1 machine


I try to install W7 on my laptop - HP 15g 082no (AMD processor and GPU)- with W8.1 which is

running there.

I want to make a duabl boot, and use both OS.

Read a lot of instruction on this Forum, following manual:

UEFI Bootable USB Flash Drive - Create in Windows

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with

I have to use EFI instalation, because I have a 5 disk totaly, 4 of them used by W8.1, so MBR cannot handle more than 4. And, I dedicated one for W7.

I also Disable Secure Boot in UEFI and ebable Legacy support in BIOS.

First boot device setup in BIOS is USB flash.

When I reset laptop I have this option to boot:

"USB Hard Drive (UEFI) - Netac OnlyDisk"

"OS boot Manager"

"Boot from EFI File"

"USB Hard Drive - Netac OnlyDisk"

"Notebook Hard Drive".

I choose first option - "USB Hard Drive (UEFI) - Netac OnlyDisk" - but when start installation

from prepared EFI bootable USB flash (16 G), I got a message

"missing widows\system32\boot\winload.efi."

Why is reason to installation feild, what is minning of this message?

How many partiotion I need for W7? It will also make new three partition, for boot and repair?
Any help here?

My System SpecsSystem Spec
19 May 2015   #2

W 8.1 64

Problem solved, I use other installation DVD and manage to install it.

Thanks for good post here whihc help me to do it.

My System SpecsSystem Spec

 How to install W7 on existing W8.1 machine

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