[SOLVED] is it possible to use win 10 key to active win 8.1 pro at the beginning of installation???

[Sakuncai]

planning to do it

 

[USAFRet]

planning to do it

No, you cannot use a Win 10 license for a Win 8.1 install.
It simply won't work.

You can, however, use an unused Win 7/8/8.1 license to activate a new Win 10 install.

 

[Sakuncai]

No, you cannot use a Win 10 license for a Win 8.1 install.
It simply won't work.

You can, however, use an unused Win 7/8/8.1 license to activate a new Win 10 install.

ok...tq for the answer bro