Windows 10 license for new motherboard

I just built my new PC with new case, motherboard, cpu, ram and ssd. I created a usb installer for windows using the old PC and installed a fresh windows onto the new ssd. I have my old hard drive in the new computer and I can boot into the old windows install and the new windows install on the same new PC.

Now windows is saying that both copies of windows are not activated because the hardware has changed. It also tells me I can activate windows by logging into my windows account but the problem is that I didn't use my windows account on the old pc so the license is not linked there.

My question is, can I just reassemble the old pc with the old hard drive to link the key to my windows account and then use that windows account on the new pc to retrieve my active copy?