Solved Install seven on dell 7490

[blackwolf76]

Hello,
I have an dell 7490 with i7 8650u core and 16gb of ram. For work requirements I need to install windows seven, but I'm having difficulty in the operation.
In the start-up phase, I get an error acpi compliant, etc ... etc ...
I read online that the architecture of the cpu does not allow the management by the old SO
I don't think it's impossible ... I wanted to know if there is a solution to the problem.

Sorry for my bad english ... use google translate.


Thanks in advance.

 

[SIW2]

Win7 runs great on kabylake and coffeelake cpus.

The error message is due to something else.

"Enable Legacy Option ROMs" must be enabled in BIOS for Windows 7

Win7 driver for Dell Latitude 7490 touchpad


There is also a graphics driver from biostar which supports those cpus here:
https://www.sevenforums.com/drivers/414172-need-driver-intel-uhd620-4.html#post3438744

 

[blackwolf76]

I used the procedure you proposed and was able to start installing windows 7.
The problem is that it does not find the chipset drivers and therefore does not see the hard disk. Do you know where I can find them?

 

[blackwolf76]

I have installed seven with integrated full driver, work fine, but this laptop don't support boot on internal hard disk on legacy mode
Work only if connect external rom for first boot.


Is impossible install win 7 normaly on this pc...:shock::shock:

 

[SIW2]

I don't understand your last post.


What kind of disk have you got in that machine?



<Display lang="en"><![CDATA[The Intel Chipset Device Software installs Windows setup information (INF) files that provides the Operating System with information regarding the system hardware.
It's supported on Latitude, OptiPlex, Precision, Inspiron, Vostro, XPS, Alienware, and IoT platforms running Windows 7, Windows 8.1 and Windows 10.]]></Display>


https://dl.dell.com/FOLDER04370908M...oftware-Driver_H41NR_WIN_10.1.1.44_A07_03.EXE

 

[blackwolf76]

the problem is this:


https://www.dell.com/community/Lati...off-of-the-internal-drive/td-p/5823308/page/4

 

[SIW2]

This poster didn't mention it. Win7 driver for Dell Latitude 7490 touchpad

Maybe he installed win7 using efi.

 

[blackwolf76]

Maybe I can't explain myself well as I use the google translator. I have to install win 7 on a 7490 dell, but once the operation is completed the computer does not boot.

In the original bios the booting from internal HD in legacy mode has been disabled, therefore it is possible to use only the uefi mode, which seven does not support.

So to start the PC with seven you need to create an external device bootable (sd, penusb) to keep connected that will start the PC with seven.

The link I added to the previous post explains how to solve the problem.

That's all.

 

[SIW2]

the uefi mode, which seven does not support

:huh:


I am using win7 under efi. Use 64 bit win7.

 

[blackwolf76]

:huh:


I am using win7 under efi. Use 64 bit win7.

On dell 7490??

You have another solution?

 

[Megahertz07]

Win 7 can be installed as Legacy-MBR or UEFI-GPT
To install Win 7 as Legacy-MBR you MUST boot the Win 7 installation disk as Legacy.
To install Win 7 as UEFI-GPT you MUST boot the Win 7 installation disk as UEFI.

 

[SIW2]

You can apply win7 image to partition on gpt disk. Then create boot files on the esp partition using bcdboot.


Borrow this boot media, extract it to usb stick.

183x64.iso

Boot it - create gpt partitions and apply the win7 image and boot files using the tools included.

Then you should be able to boot to the internal disk in efi mode.

 

[blackwolf76]

I finally solved, thanks to your valuable help and online research.
However knowing the right steps is not impossible and not too difficult either, everything is going to get there.

I have used this Iso:
Noticias - ISO Media Installation for Windows 7 SP1 x64 English/Spanish October 2018 with Coffee Lake, Skylake, NVMe, USB 3.0/3.1, Thunderbolt support and all updates until October 2018 (Slipstreamed)

This guide to create a usbstick for uefi boot:
Creare USB avviabile di Windows anche UEFI - ChimeraRevo

A portable version of IoBit driver booster for update all driver and your info for update VGA (biostar modify) and Touchpad driver

Win Update don't work fine, but use WSUS...

 

[SIW2]

You can use this to get updates Releases . zeffy/wufuc . GitHub

 

[blackwolf76]

You can use this to get updates Releases . zeffy/wufuc . GitHub

i have solved whit this, only last problem is when install language pack, at restart of pc have error.
I tried it in many ways but didn't want to know to activate it. Probably the version of windows I used has some problem of incorrect modification.