At the diskpart command prompt, type active and press enter.

At the diskpart command prompt, type format fs=ntfs quick and press enter.

At the diskpart command prompt, type create partition primary and press enter.

At the diskpart command prompt, type clean and press enter.

At the diskpart command prompt, type select disk 2 and press enter.

We know due to the size (7633MB) and that it’s not highlighted as a Gpt disk/partition.

Make sure you know what disk is the USB.

You will see a DOS format table listing your available disks.

Once at the diskpart command prompt, type list disk and press enter.

In the command prompt window, type diskpart and press enter.

Click/press Start, type CMD, right click on the (likely) first result and choose Run as administrator.

Open a command prompt window as an administrator.

Plug it in to your desktop/laptop and let’s get started! Oh, and be prepared to lose any data on the USB disk, so back it up first if necessary.

For this, we’ve used a generic USB2 disk and are currently doing this on a Windows 8.1 Pro client. While not a new process, we’ll try to cover as much as possible, just to give you a bit of flexibility when going through this process.įirst, let’s prep the USB pen. So today, what we’re going to do is show you how to take an 8GB USB disk (4GB can be used for the 32bit edition), prep it for installing Windows 10, transferring the files to it and booting from it. Historically, whether you copied Windows 98 to a directory on your C: drive from DOS called win98.src and installed from there, or created a USB boot of Windows 8 direct from the media’s installer, it’s possible to install the Windows OS from a number of mediums. But how do you install it from the ISO you’ve just downloaded? Well, read on and find out. If, like us, you have downloaded the Technical Preview for Windows 10, you’ll be itching to try it.

Windows onto usb