Yes, you'll need a Windows 8 license key to validate the install. Download the appropriate installation media. Select the Windows 10 ISO file: Under the Boot selection section, click on the Select button and navigate to the location where you saved the Windows 10 ISO file. Windows 10 USB Boot Restart Loop EDIT: The time of writing is February 2021, and the newest version of Windows currently available is 20H2. Below are the steps to create this bootable USB flash drive using the Media Creation Tool issued by Microsoft. Once the media creation tool is finished, you can use the USB flash drive or DVD (after rebooting) to install Window 8.1. Select the USB drive: In the Rufus window, under the Device section, select the USB pendrive you want to use as the bootable media. Head to Microsoft's installation tool webpage, connect your USB flash drive (at least 4 GB of space should be available) or insert your writeable DVD, and then click the Create media button. Save the ISO image to a USB drive for emergency reformatting and installations (we've all been there before) or just peace of mind. The free tool downloads and creates the installation media you need to install Window 8.1 right away, without having to first install Windows 8 and then update to Windows 8.1, a lengthy process. It could come in handy if you ever want to reinstall Windows 8.1 or install it from scratch. Want to reinstall Windows 8.1 but don't have any installation media for it? Microsoft has released this new tool for you.

Microsoft win to usb