I had several Dreamspark keys of Win7 and Win8.1 lying around. You are allowed to use these for 2 machines.
So I used two keys to activate two Win10 virtual machines. However, when I used a key tool to find out what Win10 key I had for each VM, the key was identical. So I gather I must accidentally have used the same key twice?
So, is there any way to retrieve the original Win7 key I used from the Win10 installed OS? All the key tools I found just give you the Win10 key, which is of course different from the Win7 key.
I’d rather avoid experimenting and using the keys I have again, because I might deactivate the VMs OS’es, so I’d like to know which one(s) were used.