[Tried many solutions] Windows 7 Installation: No CD/DVD drivers found

I have a Windows 7 USB which had been used to install Windows 7 on a HP PC a few times before and there was no such an error.
When I got my new PC about a year ago, this error showed up but a friend had helped me to go through that.
Now I have to install Windows 7 but neither me nor my friend remember how to solve this.

First I accidentally put it in a 3.0 port, and I corrected that.
I had flashed my BIOS also but no use.
My motherboard doesn't have the option to change to IDE mode but only option to disable SATA controller.
The port switching trick also didn't work.
I couldn't find a inf driver in ASROCK's website and I have tried a few other driver from other motherboard but it showed that they are incompatible (expected).

Hi Volvo,

Have you dissabled secure boot, as i suspect you have UEFI, requires a different set up proceedure

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums

Roy

Yes, it is using UEFI but secure boot is disabled by default.

I only have a Windows 10 PC around and can I use that to complete the tutorial?

It is always a good procedure to have your data backed up before you start.

You have to find out if your disk is UEFI-GPT or Legacy-MBR.

To install as UEFI-GPT or Legacy-MBR is the way you boot the Win 7 installation disk.
During POST, launch the boot menu (F?). It will show two options to boot the Win 7 installation disk (USB flash or DVD).

If your drive is UEFI-GPT you must boot your Win 7 installation disk as UEFI, delete all partitions BUT NOT the one you have your data and install on the fist large partition.
You will end with
- UEFI Fat32 partition - 100M
- MSR RAW partition - 120M
- Big NTFS with Win 7
- Your data partition.

If your drive is Legacy-MBR you must boot your Win 7 installation disk as Legacy, delete all partitions BUT NOT the one you have your data and install on the fist large partition.
You will end with
- MSR RAW partition - 120M
- Big NTFS with Win 7
- Your data partition.

I think my disk is MBR as my current install only has one system reserved.

But now I can get into Windows 7 but having .Net Framework corruption even after a repair install.
I shall have a new thread for that.

Thanks anyway. :)

VolvoKS said:

I think my disk is MBR as my current install only has one system reserved

To see if it is GPT or MBR you can use Disk management
Open disk management and on the View - Top - Disk list. On the partition style you going to find if it is a GPT or MBR.

Mine should be a MBR disk then, just checked.
But newer ones must have to use GPT on it? Like 850 EVO?