How to copy files to and from an Xbox One USB Formatted hard drive using a Windows PC
Background:
USB drives configured for the Xbox One use the same NTFS file system your Windows based PC uses, however you need to change the MBR (Master Boot Record) on the USB drive to enable a Windows PC to read the drive once it has been configured for use in your Xbox One console. Once you have copied files to / from the drive you then need to change the MBR back so the Xbox One can read the drive again.
Thankfully this is easy enough to do with an app called Xbox One External Storage Device Converter, this tutorial will show you how to do this.
To start with we will presume you already have an Xbox One formatted USB drive with some content installed on it you wish to access on your PC.
How to access Xbox One USB drives on the PC:
First download and run Xbox One External Storage Device Converter 1.1
You must run this app with admin rights, this is simply done by right clicking and selecting run as administrator
Now select File > Scan
Take note here, if you have multiple hard drive inside your PC remember which one is in Xbox mode as you will need to change this drive back to Xbox mode.
As you can see in the screenshot below PhysicalDrive3 is in Xbox Mode
Right click on the drive in Xbox Mode and select "Enable PC Mode"
After enabling PC mode select File > Scan and the Xbox One usb formatted drive should now be in PC mode
Safely remove this drive as you would any other USB drive connected to your computer, then disconnect the usb drive from your computer
Now reconnect the USB drive, and go to My Computer / This PC (depending on your version of Windows), you will see Windows has now mounted the hard drive your Xbox One console formatted. The Xbox One formats the drives as NTFS.
You can now copy content to and from the hard drive just as you would any other internal hard drive
More importantly you can extract Xbox One apps and games, like we could do on the Xbox 360.
Below i have copied the Project Spark Beta and my installed Trials Fusion game to the Xbox One formatted USB drive, i can now simply copy these files to my PC.
As you can see i can copy files to and from the usb drive with no problems at all.
Remember before putting the drive back in your Xbox One to run the Xbox One External Device Converter app again and put the drive back in Xbox One mode, if you dont do this the Xbox will want to format the drive again and you will loose any content stored on it.
Thanks to Angerwound for this great little app, hopefully this is the start of Xbox One content sharing

Note: This does not enable piracy on the Xbox One, you can simply share content as you can with the Xbox 360, you still require a licence or disc on the console to play any content with DRM.

