Cannot install Windows 7 on my new HP laptop

[at2011rus]

Hello,

I have just bought
HP Notebook - 15-bs158sa and upgraded my 1 tb HHD to 500GB SSD and also upgraded my 4GB of RAM to 8GB
and would like to install Windows 7 64-bit on my new SSD but it won't do it, it gives me the following error:

Load Driver: a required cd/dvd drive device driver is missing error
https://images.scdn8.secure.raxcdn.com/wp-content/uploads/2016/06/img_5751005d9e1c2.png

As my laptop doesn’t have a DVD ROM I am using External USB DVD ROM, I have tried both Windows 7 and Windows 10 disks, tried using all my USB ports (one of them must be USB 2.0, also tried using bootable Win7 pendrive but face the same issue.
CD-ROM Boot and USB Boot are enabled in BIOS.

Also HP seems to have only Win 10 drivers for this model, is it possible or I am just not looking in the right place?
https://support.hp.com/gb-en/drivers/selfservice/hp-15-bs100-laptop-pc/16851388/model/18165344

Any ideas what I am doing wrong?

 

[neil_99999]

Put your HDD back in and download a program called YUMI and the ISO for the OS you want to install. You'll need an empty USB stick.

Run YUMI to set the USB stick up for installing windows.

Just make sure you download the correct ISO so your product key works

 

[at2011rus]

I had a very useful reply on HP forums

so tried installing Win10 from USB and that worked fine, a shame that processor doesn't support Win7, another way to make money for Microsoft ?