definitely the activation will reset due to hardware changes.

you need to reactivate it again. but you don't have the windows 10 key.

so here's the possible solution.

1. install windows 8.1 on your new laptop and activate it.

2. upgrade it to windows 10.

3. to ensure everything smooth, clean install windows 10, no need key, skip windows key during installation, because in step 2, you already activated the windows 10 on your new laptop, microsoft keep a record on their server, you no need to reactivate again next time when format pc. (you can ignore this step if you lazy or feel not necessary.)

read clearly, "but you don't have the windows 10 key".

for windows that upgraded to windows 10, that pc no need windows 10 key for next time activation when reinstall windows.

mirosoft keep the activation on their server edi.