Windows 10: Does anyone has legit Windows 10 Home/Pro retail licence?

If so, would you like to help me to output the PIDKey like this screenshot? https://s1.bukalapak.com/img/61485852811/w-1000/Best_Product_Lisensi_Windows_7_Sp1_Prriginal_Retail.jpg

:)

 

Windows 10 Pro full retail licence

I have a PC running with a full Windows 10 Pro retail licence. I need to replace this PC (it is failing) with a new build and I understand I can use the same licence on the new PC if I uninstall the licence from my current PC. It is on a USB with a product
key.

I have two questions.

1. Can I use the MS Media Creation Tool 1909 to install Windows 10 Pro on my new PC and later enter my existing product key to activate Windows when I have fully loaded my programs onto my new PC or do I have to uninstall the licence key first.?
2. If I uninstall the licence key first from my old PC will it still be useable for a few days/week until I have fully loaded my new PC?
   

 

Get a Windows 10 licence for free if you register on Windows Insider

Yeah.

I installed the preview on 3 computers and I have 2xWin8 pro and 1xWin8 pro WMC licences already. I'm wondering if there will be a way to convert my Win 8 licences to Win 10 ones without having to install the full OS and go through the upgrade route.

I'm also hoping that my retail license will remain retail as I plan to upgrade a little after skylake is released.

 

migrating windows 10 using windows 8.1 retail licence to new system

I am using my retail licence of Windows 8.1 Pro on my Asus laptop which was purchased with DOS. I have even upgraded it to Windows 10 Pro. Now I have purchased another new laptop running on DOS and I want to migrate my licenced windows 10 to new one. I
will format the old laptop and will install fresh Windows 8.1 Pro with licence key. Can I do it and can update the OS to Windows 10 Pro again on new laptop. Please share details of the steps which should I care while performing this exercise.