Please make sure the location you choose has more free space available than the size of the media - more than 4 GB should suffice. You can use 7-Zip or WinRARto extract the contents, if the file cannot be mounted. If you already have the Windows 8.1 DVD or ISO file, you will first have to copy the contents of the DVD or ISO into a folder on the internal storage of the device. How Can I Create the USB Drive From a Windows 8.1 DVD or ISO file?
![make disk image windows 8.1 make disk image windows 8.1](https://cdn.ndtv.com/tech/images/gadgets/microsoft_usb_dvd_tool.jpg)
If you prefer a visual step-by-step guide, you can look at the screenshots posted below.
#MAKE DISK IMAGE WINDOWS 8.1 INSTALL#
![make disk image windows 8.1 make disk image windows 8.1](https://www.nextofwindows.com/wp-content/uploads/2013/07/UEFI-USB-Drive-copy-ISO-files-to-flash-drive..png)
How Does the Windows 8.1 Product Key Help? Please note that you need a Windows PC for this task. My colleague Wayne Williams has already written a guide which details all the steps that you have to go through. If you have a Windows 8 product key, you can download the Windows 8.1 ISO file directly from Microsoft's servers, and create a bootable USB drive as well.