How can create a media usb drive to install windows 8.1 on a pc that crash disk and had to install a new drive. I downloaded the Mediacreationtool from Microsoft website, and created a pen with the operating system. Before the disk fails took windows key.
But after boot from pen drive with win 8.1 and starting install, setup ask me windows key. After put windows key setup tell me key is not valid.
For pre installed windows 8.1 (and when disk crashes) where can find windows?