Hello, everyone ! These days I am trying to install Windows 7 on my thinkbook15iil. Before that, I have read some posts about the installation  and learnt that there are several diffculties to achieve the goal :

• A5 BSOD caused by ACPI [1]
• stuck on Win7 logo because of the lack of gop support in Win7 [2]
• [Already Solved] Integrating drivers into Windows7 installation media [3]

 

     After I got the basic usage of OpenCore, the open-source boot manager of modern machines, I have some new ideas:

             Is it possible to use OC to avoid the chaoes[2] in Windows7 installation?

             Is it  feasible to bypass chaoes[1] caused by old ACPI.sys?

             Is it necessary to unlock the advanced menu of UEFI-BIOS of the computer? The feasibility? And if the answer is positive, how to do it?

     

 

 

 

 

 

Hello and welcome here,

 

What is the purpose of running such an old OS on such a machine ?

 

With this tool, you can install Windows 7 with the boot.wim of Windows 7, maybe that will help with installation: https://forums.mydigitallife.net/threads/mdl-win-7-tool-for-simplix-updatepack-aio-iso-with-install-wim-esd-creation.79421/

Thanks a lot . The reason is that the stability of Windows7 is better and some softwares only support Windows7.

And when it comes to register in MDL, a dreadful problem occurred: I was always regarded as an automatic program even after passing the recaptcha procedure. I tried to contact MDL forum's hoster, but got no replies.  How can I solve this ?

Maybe you can try with a proxy/VPN ?

 

You can also try bugmenot:

https://bugmenot.com/view/forums.mydigitallife.net

Thank you. I finally made it using js-replacer .[ A tool to help people whose net condition is not good to load resources of web pages ]

Now I am trying to make use of the utility.😀

Unfortubately it didn't go smoothly.

I guess the problem roots in the acpi.sys?

Or the lack of support of VGA-GOP? 

You should find an older machine to use Windows 7, and use 10 or 11 on this one.

Thank you for your reply. Maybe it's a time to buy a second-hand PC.😂