We Were Unable To Copy Your Files. Please Check Your USB Device. Earlier this week, I installed Windows 7 on my laptop in dual boot with Windows 8. While preparing the bootable USB of Windows 7 using Microsoft USBDVD Download Tool, I got We were unable to copy your files. Please check your USB device and the selected ISO file and try again error. More often than not I use the ever green Command Prompt or the popular Rufus tool to install Windows 7 from USB drive. However, this time, I thought of using the official Windows 7 USBDVD Download Tool that I had downloaded earlier to check if its compatible with Windows 1. Those of you getting We were unable to copy your files. This tutorial is about Windows 7 USB Installation. Use that ISO image in Windows USB DVD tool. ISO file on my USB device. Fix to The selected file is not a valid ISO file. Please select a valid ISO file and try again error while using Windows 7 USBDVD Download Tool. Nero 7 Ultra. Windows 7 Ultimate x64 Missing cddvd. USB drive. i downloaded windows 7 iso file then burned it to a disc. The selected file is not a valid ISO. Then opened up the Windows 7 USB download tool. After searching for the Invalid ISO File errors I ran across a blog. Windows 7 Usb Dvd Tool Invalid Iso File Solution' title='Windows 7 Usb Dvd Tool Invalid Iso File Solution' />Please check your USB device and the selected ISO file and try again error while preparing Windows 781. USB can use a more efficient third party tool such as Rufus to prepare the bootable USB. The download size of Rufus is under 1 MB, and more importantly, you can run the tool without having to install it. However, if you dont want to use Rufus or any other tool, you can complete the given below instructions to fix the error. Windows81Er12.png' alt='Windows 7 Usb Dvd Tool Invalid Iso File Solution' title='Windows 7 Usb Dvd Tool Invalid Iso File Solution' />Burn ISO to USB disks with ease. The ISO image file is a popular image of the CDDVD discs, an ISO file can include. Windows key X together. NOTE If youre getting Selected file is not valid ISO file error, please check our workaround to fix selected file ins not a valid ISO file error. Step 1 Open elevated Command Prompt. That is, you need to open Command Prompt as administrator. Windows 7 Usb Dvd Tool Invalid Iso File Solution' title='Windows 7 Usb Dvd Tool Invalid Iso File Solution' />Microsoft offers their own Windows 7 USBDVD Download Tool to Make your Own Windows 7 or Windows 8 USBDVD Bootable Drive. It is FreeWare Software by Which You can. Unable to copy files using windows 7 usbdvd download. USBDVD tool to put the iso onto an. USB device and the selected ISO file. Victoria Hdd Utility Iso'>Victoria Hdd Utility Iso. How to ISO file of Win7 OS to USB For the sake of learning i used Win 7 USBDVD download tool to make a. If your having an issue with an invalid iso then. Invalid ISO file The selected file is not a valid ISO file. Please select a valid ISO file and try again. Windows 7 USBdvd download tool displaying the above. To do so, type CMD in Start menu search box and then simultaneously press CtrlShiftEnter keys. Click Yes button when you see the UAC prompt. Alternatively, you can open the Start menu, click All Programs, Accessories, right click on Command Prompt entry and then click Run as administrator option. Note that you must run the Command Prompt as admin to follow the instructions mentioned in the next step. Step 2 Once elevated Command Prompt is launched, execute the following commands one after another. Diskpart. List disk. The above command will show all connected disks with their numbers. You need to note the disk number of your USB drive. Be sure note down the right disk number. Select disk XIn the above command, replace X with the disk number of the USB drive Ex 2. Entering a wrong disk will cause data loss. Clean. Create partition primary. Select partition 1. Gtr2 S. Active. Format quick fsFat. Assign. Exit. Step 3 You can now copy all files from your Windows 7 DVD or ISO file to the USB drive. Alternatively, you can run Microsoft USBDVD Download Tool again to prepare the bootable media and automatically copy all files to the USB.