[sml156]

As long as you have a network connection you can install Win 10 again and it will activate the license for free as long as it's the same Home or Pro version, You can even switch your install to or from 32 and 64 bit.

The license is stored on Microsoft's server's.

[yingw787]

I might not have activated my license, but I do have a genuine Microsoft Windows sticker and the laptop serial number. I'll give them a call tomorrow to see what they can do. Thanks so much for sharing!

[Kipters]

You don't need to, your license is actually an attestation in your laptop's firmware: you can simply reinstall and it will automatically activate by itself