This will download the file WindowsSetupBox.exe for Windows 8.1 or Windows8-Setup.exe for Windows 8.ĭo note that a Windows 8.1 key will not work with Windows 8 and vice versa, and you will get an 'invalid product key' warning if you try to use them for the wrong installation, although the upgrade from 8 to 8.1 is free. Head over to this page and simply click the buttons Install Windows 8.1 if you have a Win 8.1 license key or Install Windows 8 if you have a Win 8 license. So instead of doing that, here's a safe way to download the official Microsoft Windows 8 or 8.1 installation files. You could turn to a BitTorrent site and look for the Win 8 or 8.1 ISOs there, but that is risky as you don't know what malware those installations might contain.
You might find yourself in a situation where you have a valid Windows 8/8.1 serial number but lost your original installation disk that came with it.
