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Windows 7: Windows 7 would not dual boot on vaio with windows 8 preinstalled UEFI

25 Feb 2016   #1
Nfsvsgta

Windows 8 64 bit
 
 
Windows 7 would not dual boot on vaio with windows 8 preinstalled UEFI

Hello
Spent about literally hundred days. Trying to dual boot windows 7 on my UEFI vaio pre installed with windows 8. I tried to follow almost all the forums on the Internet. Created bootable usb which gets stuck at starting windows and used a dvd which the vaio does not recognise. When choosing legacy boot on bios then the problem comes that my hdd is not mbr and I am not in a position to format and delete everything due to important files. Pleas help me how do I install windows 7 on this Vaio as there is no guide for this specific platform. Thanks


My System SpecsSystem Spec
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25 Feb 2016   #2
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

As far as the BIOS goes the VAIOs are very restrictive. I was fighting with a VAIO for several weeks until I RMAd it. You may want to try running the Win7 in a virtual partition.

Virtual OS Tutorial - Install, Setup and Operate
My System SpecsSystem Spec
25 Feb 2016   #3
Nfsvsgta

Windows 8 64 bit
 
 

Yes I even tried to install it on o virtual mbr disk but the setup would not install on it. I tried searching for manually installing it via powershell but m not good in coding and my PC does not have hyper v
My System SpecsSystem Spec
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25 Feb 2016   #4
Nfsvsgta

Windows 8 64 bit
 
 

Further I have done it on VMware but it is too slow to use for my everyday tasks. It can't even run directx games
My System SpecsSystem Spec
25 Feb 2016   #5
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Right, virtual is not for gaming. But that does not bother me because I am a strict anti-gamer.
My System SpecsSystem Spec
26 Feb 2016   #6
Nfsvsgta

Windows 8 64 bit
 
 

Lol. Well I think If I can embed the windows 7 to a vhd somehow and then set that vhd to boot via easybcd, then I can run win 7 but how can I embed one on vhd?
My System SpecsSystem Spec
26 Feb 2016   #7
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
I believe you'd have to install win-7 first then add win-8 after if it's even possible.
My System SpecsSystem Spec
26 Feb 2016   #8
Nfsvsgta

Windows 8 64 bit
 
 

Any other alternate. I.e any way to install on vhd and then redirect boot of laptop to it. Or will windows vista install on UEFI since it would do the same task for me too. ??
My System SpecsSystem Spec
27 Feb 2016   #9
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
I'm sure you would run into the same conflict installing Vista if 8 is already installed
You can have uefi bios and install Vista or win-7 just so ahci compatibility is enabled.
Secure boot would need to be disabled but CSM needs to be activated

OS Type has to be anything other than UEFI only.

Fast or quick startup needs to be disabled.

But most of all win-8 has to be installed after Vista or 7 is installed.
And that is unless the manufacture of the machine has not locked out win-7/ Vista installs.
My System SpecsSystem Spec
29 Feb 2016   #10
heroleo

Windows 7 Ultimate x64
 
 

Windows 7 does not support uefi secure boot, so you may need to disable the uefi secure boot before installing Windows 7.
My System SpecsSystem Spec
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 Windows 7 would not dual boot on vaio with windows 8 preinstalled UEFI




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