Multiple Windows keys one account

[Guest Dosa Szabolcs]

I would like find out the following things.

 

 

1. If i activate a windows 10 product key on a device and log in to my Microsoft account and associate the two , can i find that product key somewhere on my Microsoft Account ? Or the only way is to keep the Product key is to save the key somewhere.

 

2. If I install windows on to a different device , like a laptop and i do not know my key can i just log in to my Microsoft Account and have the laptop with valid windows ?

 

3. I'm guessing i need a licence for each of the devices that uses windows and i want to use it in parallel , so if i keep my laptop and my PC i need two product keys. How do i know which one is using which?

 

3. Can I make a some kind of "company account " that hold all the CD keys , and if i buy 20 keys then i can control on which devices can the keys be active?

 

4. If I install windows on the device and I change the PC (doing upgrades) can how many times can I reuse the same key ?

 

I have so much question , ill stop here and see where it goes from here :)

 

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