Solved HP 800 mini G3 black screen when install Windows 7 BIOS CSM/MBR disk

[siliconbeaver]

HP 800 mini G3, shipped with Windows 10. It's Intel skylake CPU (i5-6500T processor 6th generation/Intel HD Graphics 530).

I was trying to install Windows 7 x64 on CSM mode/MBR disk but got black screen after Windows logo before "Install now".

The install media was combo of media by SIW2 adding skylake driver by Atak_Snajpera. mouse just worked fine (mouse cursor moving on black screen). hinted USB3 port ok.



Anyone got success on this, or similar install (Intel skylake CPU 6th gen)? how can I fix the video/black screen issue. it must need a proper driver and setup.

Thanks,

btw, on this MBR disk there are existing files on other partitions. hence, I prefer MBR disk. GPT disk looked ok in my install test.

 

[SIW2]

Have you tried hp cloud recovery ?

driver pack is here:
https://ftp.hp.com/pub/softpaq/sp80501-81000/sp80510.exe

https://ftp.hp.com/pub/softpaq/sp80501-81000/sp80510.html

 

[siliconbeaver]

not yet,

If shipped with WIn10, will HP cloud recovery still work?

[h=3]Using the HP Cloud Recovery Tool (Windows 10, 7)[/h]

 

[Megahertz07]

I have installed Win 7 on my Skylake desktop and have installed on a friend laptop.

I would say that the issue is on the Win 7 installation files.

How much RAM does it have?

 

[siliconbeaver]

It's 16GB. it's shipped with Windows 10. If Windows 7 install, 16 GB should be fine.

Some manufactured PC is with white list. no way to install Windows 7, no matter CSM enabled or NOT. such as Lenovo PC.

Thank you for the file. I will try.

I have installed Win 7 on my Skylake desktop and have installed on a friend laptop.

I would say that the issue is on the Win 7 installation files.

How much RAM does it have?

 

[SIW2]

I think I have the hp media for the 800 g3.

I had written on it 800 g4 but it is actually for HP EliteDesk 800 G3 TWR

there are two wim files, both are extracted onto the same fat32 formatted usb stick




you should be able to get the exact one for your machine from the cloud recovery tool.

HP Cloud Recovery

 

[siliconbeaver]

Thanks for the link. I am downloading it. will try.

so far, no luck. I have tried media offered by IDs in this thread, including Atak_Snajpera.

On Windows 10/11, some python pyautogui needs "Run as admin", a big trouble. I cannot fix that. have to go Windows 7. (I have asked ChatGPT. same suggestion "Run as admin". )

 

[SIW2]

have you downloaded and installed the hp recovery media yet ?

 

[siliconbeaver]

No,

I am waiting for my oncoming 32GB USB drive.

the HP tool requests size 32GB (even for Windows 7, no matter full package, or driver only). I did try 16GB (that's what I have this week). HP tool wouldn't enable Write (grey). Hence, I failed to go next (I was thinking Win7 driver only, but HP still asked 32GB).

Do you know any way to make it local?
If local *.ISO file, that will be much easier. at least, Microsoft offers this option when download Windows 10/11.

 

[SIW2]

it will download the big wim files %appdata%\local\temp

then it extracts them to the usb stick.

but it wont do the download unless it finds a suitable usb stick first.

I dont know how to emulate usb stick in windows.

 

[siliconbeaver]

Thanks SIW2,

I tested install. It's only Windows 7 install media working on HP 800 mini G3 MBR disk. Other medias no go. HP is unique.

Its final size on USB is 6.25GB, though must be downloaded onto a 32 GB USB drive. hence I later moved its copy to a 16 GB USB drive (even 8GB should be ok)

 

[SIW2]

have look at boot .wim and see what is in image 2

is it the same size and date as this ?



there are no video drivers in there. It uses standard microsoft vga.sys

 

[siliconbeaver]

I don't know how to use the tool and how to obtain the info on Windows 7.

I was uploading the file here to you. but failed due to its size big (boot.iwm about 213MB).

 

[siliconbeaver]

Update

the media downloaded from HP web/HP_RECOVERY works on HP computers only. even though it looks generic.

I tested the HP media on non-HP computer install. the install went freezing-up. (In contrast, Dell Windows 7 install media/DVD works for non-Dell PCs).

I was thinking the HP media should have drivers of USB3, NVMe, and could be useful to install other new PCs.

Looks no go. HP is unique.

 

[siliconbeaver]

I got my 2nd HP 800 G3 (from sn, newer than my 1st one).

It can run Windows 10/11 only. no way to install Windows 7. its CSM mode is disabled (grey). while UEFI mode wouldn't boot Windows 7 install/HP_RECOVERY (error: selected boot image did not authenticate. solution per HP is to enable CSM mode).

my 2nd HP 800 G3 looks more like Lenovo PC. cannot install Windows 7. only takes Windows 10 HP RECOVERY.

So, same HP 800 G3 model, both shipped with Windows 10/11. 1st one can run Windows 7. the 2nd one cannot.

 

[SIW2]

its CSM mode is disabled (grey)

Solved: BIOS Refuses to Enable Legacy Boot - HP Support Community - 5491354

Deploying windows 7 with HP models

configure the BIOS like this:

1. Legacy Support Enabled

2. Secure Boot Disabled

3. Fast Boot Disabled

This BIOS configuration gives you the CSM mode needed to run Windows 7 x64. For me it seems little bit weird but that’s the case with these models. If this configuration is correct, then you can deploy Windows 7 with UEFI.

Just remember to boot from UEFI USB or UEFI Network. Otherwise you will end up with MBR partitions.

 

[siliconbeaver]

Thanks,

I have tried and my HP G3 BIOS has been flashed to latest version. but the problem stays.
(CSM/UEFI select boxes grey out. cannot be clicked)

If boot Windows 7 install USB. "selected boot image did not authenticate." I was expecting, at least it boot then I apply UefiSeven. but no luck.

If Windows 10 install USB. no problem. therefore it's running Windows 10/11.

I wish it could select CSM mode. that would be easier for PC backup. and I could keep two HP G3 same backup policy.