UPDATED: the seller came through with a valid license key and Windows activated.I updated the product key and everything started working.Tried MS phone Scottish after web didn't work. Phone activation also failed.Got transferred to MS rep who verified the windows key from the bios'.  Then refused to activate it. Said the key is actively being blocked by MS... It's not valid any longer.Those is brand new!  1st boot.I've messaged the seller & manufacturer to solve this and will update the review if they fix it.  Until then don't expect Win10 to be working.