Where to download Windows 7?

I purchased a new laptop running Windows 10. I want to wipe my old HP and do a clean install of Windows 7 Home Premium. I don't want to reinstall using HP's disc if I can avoid it. Prefer a clean and light running PC since this will really only be for miscellaneous use.
Anyway, I thought I could download a copy of 7, burn to a bootable USB and install, entering my C of A when prompted. But when I tried downloading from MS, I was asked for the C of A, only to be told it was an OEM and I needed to contact the manufacturer directly. Any way to get around this? Thank you.

Try this.

https://www.sevenforums.com/general-discussion/55119-file-open-file-save-does-not-work.html

These links should help, you obviously have the product key already if Microsoft told you to go to the OEM,

Brds7t7 said:

Don't bother using the MS site, it doesn't work for me with a legit retail key. A lot of people have had issues.

Try this site, the MD5's are correct:

Download Windows 7 ISOs, Legally and for Free | PCsteps.com

AddRAM said:

Or here.

Microsoft DigitalRiver Mirror

Windows 7 iso wont download from MS

To clarify, I have a product key that came with the HP laptop. When I attempted to download 7 from Microsoft, I was prompted for the key, but then received a message that it is an OEM key and I should contact the manufacturer. But I already have the HP Recovery disc, which is what they will send if I contact them.
I'm just looking for a legit download of 7 that I can use for a clean install. But it doesn't appear that exists anymmore.
In the meantime I am going to try the link posted above to PCsteps.com. Thanks, everyone!

Win7 home premium x64 direct from Microsoft (link should be good for 24 hours) - http://software-download.microsoft.c...5ca8392b34e897

He should be fine with the direct link from Microsoft that I gave him if if gets it within 24 hours from when I posted it.