Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Problem downgrading Win 8.1 to Win 7 on HP 19-2113w AIO desktop.

10 Mar 2016   #1
GeoGoGo

Windows 7 Professional 32 bit
 
 
Problem downgrading Win 8.1 to Win 7 on HP 19-2113w AIO desktop.

Hello Everyone!

I am having a problem downgrading a clients machine from Windows 8.1 64 bit to Windows 7. It boots off the Windows 7 CD, and gets to the Windows is loading files screen. The progress bar fills up and it switches to the Windows 7 splash screen for a few seconds and then it blue screens with this message, 'the BIOS in this system is not fully ACHI compliant. Please contact your system vendor for and updated BIOS. 0x000000A5.

I have flashed it to the latest BIOS and it has no effect. I have reset the UEFI settings within Windows and disabled UEFI in BIOS while enabling legacy boot. I have done this on several other HP machines for clients and when rebooting after the UEFI reset, just before the HP splash screen I would get a message telling me to enter the 4 digit code and press enter to complete the reset. On this machine, I do not get the code to reset it.

After some googling I found mention of it there being problems boot from the Windows 7 CD. So I prepared a Windows 7 boot flash drive with Rufus and a Windows 7 iso. I change the BIOS setting to boot from the flash drive and I get to the exact same point in the install before it blue screens again.

Has anyone else run into anything like this? I have never had an issue downgrading like this before. Any ideas, suggestions, input, or opinions will be greatly appreciated. Thank you all in advance!

Respectfully,
George D.


My System SpecsSystem Spec
.
11 Mar 2016   #2
xse

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by GeoGoGo View Post
Hello Everyone!

I am having a problem downgrading a clients machine from Windows 8.1 64 bit to Windows 7. It boots off the Windows 7 CD, and gets to the Windows is loading files screen. The progress bar fills up and it switches to the Windows 7 splash screen for a few seconds and then it blue screens with this message, 'the BIOS in this system is not fully ACHI compliant. Please contact your system vendor for and updated BIOS. 0x000000A5.

I have flashed it to the latest BIOS and it has no effect. I have reset the UEFI settings within Windows and disabled UEFI in BIOS while enabling legacy boot. I have done this on several other HP machines for clients and when rebooting after the UEFI reset, just before the HP splash screen I would get a message telling me to enter the 4 digit code and press enter to complete the reset. On this machine, I do not get the code to reset it.

After some googling I found mention of it there being problems boot from the Windows 7 CD. So I prepared a Windows 7 boot flash drive with Rufus and a Windows 7 iso. I change the BIOS setting to boot from the flash drive and I get to the exact same point in the install before it blue screens again.

Has anyone else run into anything like this? I have never had an issue downgrading like this before. Any ideas, suggestions, input, or opinions will be greatly appreciated. Thank you all in advance!

Respectfully,
George D.
ACHI is required to boot windows in BIOS. ACHI is not required for EUFI AFAIK.
Since this computer was built for win8.1, it was built for eufi, and achi isn't supported.
This means that you won't be able to install windows 7.

HP is notorious for making it hard to downgrade, unless you choose a business model
My System SpecsSystem Spec
14 Mar 2016   #3
GeoGoGo

Windows 7 Professional 32 bit
 
 

Now that you mention it, this is the first consumer grade machine I have tried to downgrade. All the others have been business class. That makes sense now.

Thank you for the information. it is greatly appreciated!
My System SpecsSystem Spec
.

16 Mar 2016   #4
hazel123

Windows 7 64 bit, Windows 7 32 bit and Xubuntu
 
 

It might upgrade to Windows 10 though! Which I expect would be better than Windows 8.1. I'd check what results other users have had upgrading that model to Windows 10 first, then if there are no driver issues, you can do a clean install of Windows 10. They let you burn the iso to a usb.
My System SpecsSystem Spec
Reply

 Problem downgrading Win 8.1 to Win 7 on HP 19-2113w AIO desktop.




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
downgrading from 8 to 7
Hi guys, I have an HP ProBook 4530 pre-installed Win 8. I want to downgrade it win 7 and for that, I know that I need to disable Secure Boot in BIOS but I can't find that option there:( Could you please help me how to solve that problem? I want to install Win 7 from a USB flash.
Installation & Setup
backup problem after downgrading from windows 10 to windows 7
I recently installed windows 10 (august 6). The same day I decided to revert to windows 7. Now, a few things don't work as before, one of them very worrying: my automatic backup is not working and, when I try to set up backup, I get the following message: The task image is corrupt or has been...
Backup and Restore
Downgrading from Windows 8 to windows 7-Driver Problem
Hi....Actually i purchased a HP Laptop 15boo2tx which was loaded with windows 8, now because windows8 was extreemly sluggish i decided to switch to windows 7 but after installing the same i managed to install drivers but i think they are not the correct one as my PC performance is not up to the...
Drivers
Downgrading
Hey guys, I find myself hardly using my gaming pc anymore for gaming,i usually just surf the net and listen to music on it,play the odd BC2 round on a weekend and that's about it as i now have a Xbox 360 :D So ive been thinking of selling my rig and buying a newer,But lower end setup,Would...
Gaming
Downgrading
Alright so i want to downgrade my windows 7 to xp i have my xp disk what do i do now also the reason is because the ram required for widows 7 is too high, and my computer would black out due to that
Installation & Setup


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 11:05.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App