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Augusto

[ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Fri 10 Jan 2014 - 20:31
that not is issue with mainboard.
If you after of created an Windows 8.1 ISO using Winreducer not start in UEFI mode in BIOS.
If using an original Windows 8.1 DVD the mainboard start installation in UEFI mode without issues.
For me not is problem in Winreducer, but something in ISO or DVD burner software.
All EFI files in correct folders without lacking any files or wrongs files or folders names.
For "fix" i start using original DVD and after in Windows 8 Start Install screen i change using Winreducer DVD and not install problems =)
Any help ?
thanks.
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branhama

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Sun 12 Jan 2014 - 8:18
You have to search first before posting man....


Look under Tutorials on main forum.
Augusto

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Sun 12 Jan 2014 - 21:30
Man even using rufus not is possible boot in UEFI mode.
Burning DVD not fix. Even using correct names and files not boot in UEFI
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winterstorm2050
Admin
https://www.winreducer.net/

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Sun 12 Jan 2014 - 21:56
Did you removed "Drivers - EFI and UEFI" ?
Augusto

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Mon 13 Jan 2014 - 0:16
thanks for reply.
Not was removed Drivers EFI and UEFI.
All folders and corrects files names in Windows ISO Folder.
Perhaps is anything related with ISO file system creation ?
BIOS not find the correct UEFI files for start.
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winterstorm2050
Admin
https://www.winreducer.net/

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Mon 13 Jan 2014 - 9:46
Ok, then you could read this thread : LINK (as branhama told you) or use the search function there are some discussion about this ... Wink


Last edited by winterstorm2050 on Mon 13 Jan 2014 - 11:33; edited 1 time in total
theKramer

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Mon 13 Jan 2014 - 11:24
Hi winter.
I think you are misunderstanding his problem.
He is able to install on his UEFI motherboard with an untouched disk, but not with a disk reduced by WinReducer.
So he uses the same process both times, but it doesnt work with the reduced disk.

He also said if he starts the installation with an untouched iso, and then replaces the untouched ISO disk with the reduced disk the installation completes without issue.

So, to me, it seems there is an issue with Winreducer.

Would it be fair to say the issue is most likely located in the boot.wim? Since he can get to the install screen with the untouched iso, but cannot with the reduced iso.
avatar
winterstorm2050
Admin
https://www.winreducer.net/

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Mon 13 Jan 2014 - 11:32
Yes, that's right theKramer, it seems I've misunderstood ... My bad ... But thank you my friend ! Wink 

OK, so Augusto, I need to know if you are using "Optimizations - ISO - Boot - Clean Boot Wim" ...
Augusto

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Mon 13 Jan 2014 - 22:19
Not was removed Drivers EFI and UEFI.
Yes using original DVD is possible install in UEFI, but not with Winreducer ISO.
Yes if starts using original DVD and then of first install screen replace with Winreducer DVD the installation completes without issue in UEFI mode.

Optimizations - ISO - Boot - Clean Boot Wim is enabled.
For startup BIOS perhaps not read files on boot win.
All folders and files of UEFI files are correct.
Perhaps is anything when creating file system of ISO.
thanks.
theKramer

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Tue 14 Jan 2014 - 7:08
Augusto wrote:Not was removed Drivers EFI and UEFI.
Yes using original DVD is possible install in UEFI, but not with Winreducer ISO.
Yes if starts using original DVD and then of first install screen replace with Winreducer DVD the installation completes without issue in UEFI mode.

Optimizations - ISO - Boot - Clean Boot Wim is enabled.
For startup BIOS perhaps not read files on boot win.
All folders and files of UEFI files are correct.
Perhaps is anything when creating file system of ISO.
thanks.
Hi Augusto.
Can you make another ISO with "Optimizations - ISO - Boot - Clean Boot Wim" NOT enabled.

Since there is an issue with the booting to the install screen, we need to find out where the issue is.
This is a good place to start Smile 
Thanks
Augusto

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Tue 14 Jan 2014 - 8:12
Yes friend. I have created and tested an Winreducer ISO not enabling Clean Boot Win and another ISO not selecting all others Optimizations options and both not boot in UEFI.
That perhaps is anything with file system ... UEFI files to be writting in begin of ISO DVD media ?
thanks.
avatar
winterstorm2050
Admin
https://www.winreducer.net/

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Tue 14 Jan 2014 - 10:03
Hello,

Maybe you need to try something else, as installation media like an USB "key".

You could read some threads talking about your problem by using the search box in the forum, and use "UEFI" as keyword. You will find a tutorial to help you ...  Wink 

Please try this, and let us know.  Very Happy
Augusto

Re: [ANSWERED] Windows 8.1 Customized DVD not start in EFI mode

on Fri 24 Jan 2014 - 16:46
I have customized some Winreducer ISOs not selecting ISO Clean Boot files.
Even using USB pen drives with some USB boot utilities EFI not work.
Is more being anything related with ISO File System with the position of EFI boot file when writing DVD media.
Hmmm I will burning an ISO without customize installation just using Winreducer for create an ISO.
After I post here the result.
Thanks.
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