Serial number Photoshop Elements 11

Hi,

I had Photoshop Elements 11 on my old computer that died last week. I bought a new one and would like to install Photoshop Elements 11 again, but I don't have my serial number anymore (I can't find the box) and I was pretty sure I registered my product into my Adobe account, but I can't find any trace of it...

Any idea of what I can do?

I have a HP computer with Windows 10.

Thank you very much for your help!

Marine