Windows 10: I built a new pc and didn't have my digital key linked when i move my ssd

So my key came from upgrading from Windows 7 to Windows 10 and I didn't realize I had not linked my account and of course didn't stop to check. I move my ssd from my old computer to my new one and it brought up activating it and i found out that i had not linked it to my account. So my question is: is there a way to reacquire my key or am I am I outta luck?As a note i still have the Win7 key but it didn't accept it.

:)

 

My newly built pc wont show up in the list of devices link to the account

I just built a new pc, i was just going to activate windows with a digital license linked to my microsoft account but my new pc wont show up in the list when trying to activate a device. However when I log in on the account on the web I can see my new computer with my devices.

I have login with the same account on both pcs and the old pc is "activated with digital license linked to microsoft account".

What should I do?

 

Digitally linked key and PC not in Microsoft account

My Windows 11 pro is Retail and digitally linked to Microsoft account, updated from Windows 10 pro

However, in my Microsoft account it shows my other Windows 10 PC only. How do I link my new Windows 11 Pro PC to this account?

Could it be that I digitally linked it to Microsoft Account using other sign in option (e.g. different email and password). If so, how do I find out which account the key is linked to?

 

I HAVE OEM KEY INSTALLED ON MY 1ST SSD ON MY COMPUTER BUT IF I INSTALLED ANOTHER SSD ON MY SAME COMPUTER CAN I USE THIS OEM KEY AGAIN IN NEW SSD AND INSTALL WINDOWS IN SAME COMPUTER

THAT MEANS I CAN USE THIS OEM KEY IN BOTH SSD IF I DIDN,T CHANGE MOTHERBOARD OR ANY OTHER HARDWARE PART AND 1ST SSD SAME DATA WILL REMAIN AND 2ND SSD NEW FRESHLY ACTIVATED WINDOWS WILL START OR NOT WITH THE SAME OEM KEY? AND ALSO I HAVE PURCHASED THE OEM KEY AND THEN ACTIVATED MY WINDOWS WILL IT CAN BE USED IN MULTIPLE SSD OR HDD