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Vorrutyer
Paper Tape
Posts: 7
Location: RU
Views: 14,808
Message 1 of 7

Failed setup windows 7 to Lenovo Ideapad 100-14IBY

Hi all!
I have a problem with my lenovo ideapad 100-14iby.
I try setup windows 7 Ultimate from USB drive.
Prepare:
- update bios (to cccn19ww v2.05 from 20-JAN-2016)
- Use usb 2.0 port (black)
Settings in BIOS
- boot mode - legacy support
- boot priority - legacy first
- USB boot - enabled

OS Optimized - Disabled

I wanted to install the Windows 7 but everytime the " loading files " i get a bsod with the message " The BIOS in this system is not fully ACPI compliant Stop 0x000000A5 "
I tried all kind of different settings through the bios, changed from UEFI boot to Legacy / disabled secure boot / I set the ACHI to compatible / use 2 different flash cards / but the end result is the same.

Boot flash drive was made with Windows 7 USB DVD Download Tool from original image of windows 7. 

Earlier this image was setup multiple times on different computers.
What is the problem and is there a fix for it?

Somebody setup windows 7 on Lenovo Ideapad 100-14IBY successfully?

Vorrutyer
Paper Tape
Posts: 7
Location: RU
Views: 14,758
Message 2 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

Fixed.
Why it was necessary to make the "Load default settings" in the BIOS.
After that - it worked.

kinytomendez
What's DOS?
Posts: 1
Location: CO
Views: 14,274
Message 3 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

hi

please help me with process to downgrade to win 7 lenovo ideapad100 14iby 

mine came with win 10

thank you so much!

Vorrutyer
Paper Tape
Posts: 7
Location: RU
Views: 12,527
Message 4 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

what is you problem?

JT315
What's DOS?
Posts: 1
Location: VN
Views: 11,229
Message 5 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

I did it but it still didn't work at all

Kelvin_brown
Blue Screen Again
Posts: 6
Location: NG
Views: 10,663
Message 6 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

Please help
I have a Lenovo ideapad 100s 14IBR, and when I tried to fully install windows 10 using Rufus to create a bootable flash. I used GPT partition scheme for UEFI and Fat32 . Bios settings secure boot disabled and boot priority legacy support . Yet it wont even boot from the USB ,USB boot is enabled . The problem is that I have already deleted my formal windows 10 that came with it. Please help I have tried may things to no good. Please help please...
Stoych
Paper Tape
Posts: 2
Location: BG
Views: 4,562
Message 7 of 7

Re: Failed setup windows 7 to Lenovo Ideapad 100-14IBY

Hello Guys,

Ihave the exact same issue as described in this topic. I am trying to downgrade from Win10 to Win7 for better performance but I am constantly getting the "BIOS is not fully ACPI compliant..." error when trying to boot from USB. I have updated the BIOS to the latest one available on the Lenovo support page. I tried every possible option in BIOS but with no result. I tried with a USB DVD drive as well just in case the USB flash drive I was using was not OK.

Please let me know what else I can try to get this working.

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