Can You Reuse Windows 10 Key?
Contents When You Have a Computer with a Retail License of Windows 10, You Can Transfer the Product Key to a New Device. You Only Have to Remove the License...
Contents
When you have a computer with a retail license of Windows 10, you can transfer the product key to a new device. You only have to remove the license from the previous machine and then apply the same key on the new computer.
Can you use a Windows 10 key twice?
you can both use the same product key or clone your disk.
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Can I use my Windows 10 key again after formatting?
Yes. OEM or RETAIL product keys for Windows can be used to activate on the same physical system over and over, no limits (although you might have to call to activate if you do it too often.) If you change the motherboard, it may not work.