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Windows 7: UEFI Problem

30 Jan 2017   #1
Cheemag

Windows 7 Professional 64-bit
 
 
UEFI Problem

Hello,

I want to do a clean installation of Windows 7 over a corrupt version of the same OS.

I cannot do so booting from the setup disc as it insists on saving all the old rubbish. The Asus A68HM UEFI won't let me boot from the CD. Any attempt to alter the boot order fails. The UEFI tells me I haven't changed any setting when clearly I have. Boot menu won't work either.

Apart from taking the disc out to reformat it, is there any other way I can wipe the C: partition ?


My System SpecsSystem Spec
.
30 Jan 2017   #2
Megahertz07

Windows 7 HP 64
 
 

Is your BIOS up to date? Update it by BIOS update feature.
Try to reset BIOS. Take out the battery and wait 5 minutes.

After you change BIOS settings you must press F10 (save and exit).
My System SpecsSystem Spec
30 Jan 2017   #3
JLAF5150

Win 7 Home Premium 64bit
 
 

My System SpecsSystem Spec
.

30 Jan 2017   #4
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Have you ever installed Windows 7 on this PC before ? Are you certain your Windows 7 install dvd works properly ?

1) Windows 7 does not come on a cd, but I`m sure you know that.

2) Did you make any changes to the Bios before you attempted the install, if so set it to defaults by hitting F5, then F10 to save and exit.

3) Sounds like you are not choosing a custom install.

4) You`re using UEFI, is the disk initialized as GPT ?

5) "Boot menu won`t work" are you talking about the one time boot menu ? Not the Bios ?

Clean Install Windows 7

Bootable Partition Manager| MiniTool Partition Wizard Bootable Edition
My System SpecsSystem Spec
30 Jan 2017   #5
Papaya

Windows 10
 
 

Restore the UEFI BIOS to default settings and then set the following settings, if you want to install Windows 7 either in UEFI mode or in Legacy BIOS mode.

ASUS motherboards.

CSM (Compatibility Support Module) - Allows you to configure the CSM items to fully support the various VGA, bootable devices and add-on devices for better compatibility.

Secure Boot - Allows you to configure the Windows Secure Boot settings and manage its keys to protect the system from unauthorized access and malwares during POST.

Boot > CSM (Compatibility Support Module) > Launch CSM
- [Auto]: The system automatically detects the bootable devices and the add-on devices.
- [Enabled]: For better compatibility, enable the CSM to fully support the non-UEFI driver add-on devices or the Windows UEFI mode.
- [Disabled]: Disable the CSM to fully support the Windows Security Update and Security Boot.

Boot > Secure Boot > OS Type
- [Windows UEFI Mode]
- [Other OS]

You do not need to change the boot order of drives in your UEFI BIOS settings. If you have changed the settings, then restore the default settings.

- Connect your Windows 7 USB/DVD.
- Restart the computer.
- Press the correct key (ASUS motherboards F8) to enter the boot menu.

To install Windows 7 in UEFI mode you need to boot from the Windows 7 USB/DVD installation media in UEFI mode (marked UEFI in the boot menu). To install Windows 7 in Legacy BIOS mode you need to boot from the Windows 7 USB/DVD installation media in Legacy BIOS mode (not marked UEFI in the boot menu).

UEFI mode uses the GUID Partition Table (GPT) partition style. Legacy BIOS mode uses the Master Boot Record (MBR) partition style.
My System SpecsSystem Spec
31 Jan 2017   #6
Cheemag

Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by Megahertz07 View Post
Is your BIOS up to date? Update it by BIOS update feature.
Try to reset BIOS. Take out the battery and wait 5 minutes.

After you change BIOS settings you must press F10 (save and exit).
I'd rather not go down that road. I'd rather take the disc out and reformat it on another machine via a USB caddy.

Could this be due to that Secure Boot system preventing alterations to the BIOS/UEFI ? I thought that was from W8+1 onwards, but the UEFI probably was meant to cope with everything up to W10.
My System SpecsSystem Spec
31 Jan 2017   #7
Cheemag

Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by AddRAM View Post
Have you ever installed Windows 7 on this PC before ? Are you certain your Windows 7 install dvd works properly ?
Yes. But update failed completely and there were other problems.

Quote:
1) Windows 7 does not come on a cd, but I`m sure you know that.
It does: The install CD which came with the machine. I realise I could download a W7/SP1 iso and make my own CD on the other machine, but it still isn't going to boot from the CD.

Quote:
2) Did you make any changes to the Bios before you attempted the install, if so set it to defaults by hitting F5, then F10 to save and exit.
No.

Quote:
3) Sounds like you are not choosing a custom install.
I am, but a custom install will only give a clean reinstall if it's booted from the CD. Start it by running Setup.exe and it'll keep all the old rubbish and retain all the old directories.

Quote:
4) You`re using UEFI, is the disk initialized as GPT ?
No idea.

Quote:
5) "Boot menu won`t work" are you talking about the one time boot menu ? Not the Bios ?
The one-time boot menu and the boot menu in the UEFI are the same. Press F8 and you end up in the UEFI: same page as you get if you'd gone into the UEFI with DEL and gone to the Boot menu. You then have to Save & Exit, at which point you're told that you haven't made any alterations ! In short both F8 and DEL take you into the UEFI, F8 taking you directly to the Boot menu rather than the intro page.

I'll have a look at that. Thanks for your response.
My System SpecsSystem Spec
31 Jan 2017   #8
Cheemag

Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by Papaya View Post
Restore the UEFI BIOS to default settings and then set the following settings, if you want to install Windows 7 either in UEFI mode or in Legacy BIOS mode.

ASUS motherboards.

CSM (Compatibility Support Module) - Allows you to configure the CSM items to fully support the various VGA, bootable devices and add-on devices for better compatibility......
Thanks. I don't pretend to understand it, but I've saved the text and will look at it for clues as to what to do next.
My System SpecsSystem Spec
31 Jan 2017   #9
Cheemag

Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by JLAF5150 View Post
Thanks. I'v tried a couple of these boot discs, but they both depend on booting from the CD to get into the Grub boot thing. I can't boot from a CD directly
My System SpecsSystem Spec
31 Jan 2017   #10
Megahertz07

Windows 7 HP 64
 
 

Win 7 isn't compatible with Secure boot. Also disable fast boot.

Follow Papaya instructions from post 5
My System SpecsSystem Spec
Reply

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