Windows 10: can i revert my windows lisence and get my old key back

hii payed a pc build company some years back to build my custom pcand i bought a official windows 10 home lisence they instlled everything and activated windows but recently a friend gave me a windows 10 pro key because i always kinda wanted to see the diffrense between the 2so i used it and it wasnt a legit key and now i lost my real home liscence is there any way to recover itpls he

:)

 

I need to transfer a windows 10 lisence to a new PC

I need to know how I can transfer a Windows 10 lisence from one machine to another, I do not have the product key from the box or anything and my old windows 8.1 lisence I forgot some where! Please help me! Sorry for bad english...

 

old email addresses

Thank you for updating me HA.111

Here is the step to remove that old email address.

Start typing an email address into the “To” field. As soon as you see the old email address being recommended as one of the potential candidates, use the down arrow key to scroll through the list of suggestions. Once you highlight the old email address, type the delete key. In many cases, this will actually remove the entry not only from the current list of suggestions but from future suggestions as well. You may even find that as you mouse over the drop-down list the highlighted item will have an “x” to explicitly allow you to delete it.

Just do this step and your good to go.

Continue to have an escellent day HA.111

Best regards,

Anthony C. De Jesus

Independent Advisor

 

Is it possible to swap lisence keys?

I have a laptop with windows 10 pro and a new computer that I built that I used a Windows 10 Education lisence key on.

I was wondering if I would be able to have pro on my desktop and education on my laptop as I use that more for school.

Thanks for your help