Windows 10: Is there anyway to recover the license key from before a PC reset?

Hi, I reset my computer to get rid of all files and such, but now even with the same Microsoft account and everything it tells me that my license key has all of a sudden "expired". I doubt that this happened randomly and I was wondering if I can recover the license as I don't want to spend another hundred.

:)

 

I sold an old PC without recovering my Windows Key from it, how to recover it?

Hi and Welcome!

If the Microsoft account does not list the license key and you do not have access to the PC, then you cannot recover the key.

 

How to recover my Windows 8.1 license key?

have any suggestion on how to recover my license key I only know the last 5 numbers. no the manufacture is of no help.

 

How to recover lost Microsoft Office 2013 Product Key after Windows 10 Reset PC

Although the Windows Lost Product Key question has been asked before, this is slightly different.
I did 'Reset this PC' from Windows 10 Recovery without taking a backup of the system or files. All my files were safe but the Licensed Microsoft Office 2013 was removed. I have unfortunately misplaced the MS Office 2013 Student and Home product box. I have also checked with Windows Helpdesk if any of my emails are associated with the MS Office and the Microsoft Account; sadly, none are.

I read that that the 'Reset' cleans the registry and removes the apps. I am thinking of two ways to try and find the key

1. Use all the Free Key finders around then buy a paid one if they don't work
   
2. Use Recuva or a similar tool to try and recover the deleted old Windows Registry files
   

Has anyone faced a similar issue or can you think of an alternate way to try and get the Key?