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8 Posts

02-21-2021

Australia

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Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-21, 2:19 AM

Hi everyone,

 

I have tried to install windows 8.1 using external bootable USB in Lenovo Yoga 7i 14 which has windows 10 as the default operating system, but the bootable USB drive doesn't show up in the boot option. It would be a great help if someone has any clue about this problem. I am not comfortable with windows 10, it's such a hypocrite operating system.

 

Thanks

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29 Posts

02-12-2021

Indonesia

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  • Message 2 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 8.1)

2021-02-21, 2:49 AM

Have you enable USB boot option in the BIOS?

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8 Posts

02-21-2021

Australia

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  • Message 3 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-21, 4:12 AM

 

Yes, I have enabled the USB boot option in BIOS though the BIOS has limited options.

 

BIOS setting options available in Lenovo Yoga 7i 14

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29 Posts

02-12-2021

Indonesia

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  • Message 4 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 8.1)

2021-02-21, 5:13 AM

What do you use to flash the USB?

Have you tried to disable secure boot?

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8 Posts

02-21-2021

Australia

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  • Message 5 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 8.1)

2021-02-21, 6:16 AM

I used universal USB installer and tried to install by disabling secure boot. 

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29 Posts

02-12-2021

Indonesia

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  • Message 6 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 8.1)

2021-02-21, 10:09 AM

Sorry for the late reply.

Can you make sure that you flash the USB for UEFI? and/or enable legacy boot mode

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8 Posts

02-21-2021

Australia

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  • Message 7 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-21, 10:53 AM

Thanks for the reply.

As we can see there is no option for UEFI/ legacy boot in the BIOS setting. Is there is someway way to access this setting?

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29 Posts

02-12-2021

Indonesia

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  • Message 8 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-21, 12:00 PM

Can you try changing the "OS Optimized Defaults" to "other OS" ?

It should be on the "exit" section in the BIOS. Then you should be able to change the Boot mode to legacy.

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8 Posts

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  • Message 9 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-22, 6:14 AM

Much appreciated.

The setting that you have mentioned above is not available in the BIOS exit section. I have attached the options available in the EXIT  section of BIOS. BIOS version is the latest version i.e. F5CN38WW. Do you recon any clue how to access that setting?

 

 

 

 

options available in BIOS exit setting

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29 Posts

02-12-2021

Indonesia

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  • Message 10 of 16

Re:Unable to install windows 8.1 in Lenovo yoga 7i 14 (default OS = windows 10)

2021-02-22, 15:16 PM

Sorry, it seems like theres no legacy support any more per this link

Do you have other laptop you can try to boot into the USB? or try to flash another USB and/or try another software to flash it?

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