Did you use the Microsoft Windows 7 USB/DVD Download Tool to install the Windows 7 Install DVD ISO to the thumb flash drive?
I have used it and it works flawlessly.
Here's info from the Microsoft Store:
Installation
To install the Windows 7 USB/DVD Download tool:
- Click to open the Windows 7 USB/DVD Download tool installation file.
- When you are prompted to either save the file to disk or run it, choose Run if you're using IE8 or Save if you're using another browser.
- Follow the steps in the setup dialogs. You'll have the option to specify where to install the Windows 7 USB/DVD Download Tool.
Note: You need to be an administrator on the computer you are installing the Windows 7 USB/DVD Download tool on. The tool requires the Microsoft .NET Framework version 2.0 or higher.
System Requirements
- Windows XP SP2, Windows Vista, or Windows 7 (32-bit or 64-bit)
- Pentium 233-megahertz (MHz) processor or faster (300 MHz is recommended)
- 50MB of free space on your hard drive
- DVD-R drive or 4GB removable USB flash drive
Using the Windows 7 USB/DVD Download Tool
Before you run the Windows 7 USB/DVD Download Tool, make sure you have already purchased the Windows 7 ISO download from Microsoft Store and have downloaded the Windows 7 ISO file to your hard drive. If you have purchased Windows 7 but have not yet downloaded the ISO file, you can download the file from your
Microsoft Store Account.
To make a copy of your Windows 7 ISO file:
- Click the Windows Start button, and click Windows 7 USB/DVD Download Tool in the All Programs list to open the Windows 7 USB/DVD Download Tool.
- In the Source File box, type the name and path of your Windows 7 ISO file, or click Browse and select the file from the Open dialog box. Click Next.
- Select USB Device to create a copy on a USB flash drive or select DVD disk to create a copy on a DVD disk.
- If you are copying the file to a USB flash drive, select your USB device in the drop-down list and click Begin copying. If you are copying the file up to a DVD, click Begin burning.
When your Windows 7 ISO file is copied onto your chosen media, install Windows 7 by moving to the root folder of your DVD or USB flash drive, and then double-click Setup.exe.
Frequently Asked Questions
The following are frequently asked questions about using the Windows 7 USB/DVD Download Tool:
Where can I download .NET Framework 2.0?
The .NET framework can be downloaded
here.
What size USB flash drive is required?
You need a USB flash drive with a minimum of 4 GB of free space.