Solved dual boot windows vista on a pre-installed windows 8.1

[KYHI]

ummm what?

YES , click setup

 

[enus234]

okay if I didn't post anything within 2 days that's means my laptop got bootloop
if I posted that's means the operation completed successfully . understand?

 

[Maltesespace]

You don't need to turn off UEFI. That will render your 8.1 OS unbootable. You need to turn off Secure boot. That is it. Don't touch anything else.

 

[enus234]

my laptop will never boot to windows it got bootloop now and repeats the Samsung logo every second

 

[Maltesespace]

Did you turn off secure boot? Did you install vista or 7?

 

[enus234]

yes I tried to install windows 7 on E partition using WinNT

and yes secure boot is turned off and default OS mode is UEFI

 

[Maltesespace]

And you have secure boot off? Did you check the box of "Find other windows and place it in boot menu" as well like i weote in my original post?

 

[Maltesespace]

I have Win7 running in dual boot with 8.1 on my laptop with secure boot off, UEFI on in the exact setup described in my OP. So if you followed that you should be good
Maybe samsung bios is different then.

 

[enus234]

secure boot turned off and I didn't saw "find other windows and place it in boot menu" ever in my life

 

[Maltesespace]

That might be the issue then. that was in the WINNT setup dialogue you should have checked it when you installed. What you need to do is boot from the Win7 DVD and do a startup repair. That should boot Win7. Then download EasyBCD to add Win8.1 back into the boot menu. sorry for being so short, posting from my phone. Will be more detailed when I get home

 

[enus234]

please take a screen shot of "find other windows . . . . ." I didn't see it in the dialogue

 

[KYHI]

you should be able to boot windows 8.1 setup media and choose "repair this computer" that should find both windows versions and correct the boot issue.. the find other OS screen pops up after clicking Setup

View attachment 60541

 

[enus234]

if I checked "find other windows . . . . ." this will give me option to boot either OS?

 

[KYHI]

from what I can see - windows 7 x64 was applied to drive E - the disk is GPT and using a EFI system partition..

All of which is correct and supported for both windows 7 and windows 8 / 8.1

Why a boot loop, is not clear... Windows 7 should of booted - gone through OOBE and MAYBE "not selecting" find other OS would cause the prior OS not being in the BCD bootmenu. but a boot loop or un-bootable OS??

 

[Maltesespace]

from what I can see - windows 7 x64 was applied to drive E - the disk is GPT and using a EFI system partition..

All of which is correct and supported for both windows 7 and windows 8 / 8.1

Why a boot loop, is not clear... Windows 7 should of booted - gone through OOBE and MAYBE "not selecting" find other OS would cause the prior OS not being in the BCD bootmenu. but a boot loop or un-bootable OS??

Yeah thats what i was thinking. You can download a Windows 8.1 install ISO / USB using the following tutorial, enus. Then boot it and do "repair this computer" as KYHI said. That should find both OSs and make them bootable.

 

[enus234]

when I click Setup it will install windows 7 x64 it will install on E partition when I restart what it will do exactly??

 

[enus234]

please record a video of installing windows using winNT

 

[KYHI]

when I restart what it will do exactly??

you should be presented with a boot menu - to select windows 7 and windows 8.1

 

[KYHI]

or you could just put the windows 7 setup media in your DVD/USB drive and run the setup.exe file from within windows 8.1

 

[enus234]

don't even have a usb and dvd I only have Windows 7 all editions pre-activated

you should presented with boot menu

do you mean windows boot manager?