Microsoft has the ISO files for the Home, Professional, and Ultimate versions of Windows 7 available for download via the Digital River website.
These ISOs can be burned to a standard DVD. Additionally, you can use the Microsoft USB / DVD Download Tool to format a 4GB or larger USB Flash drive so that it can boot to the Windows 7 installer.
- Windows 7 SP1 – Ultimate (32-bit)
- Windows 7 SP1 – Ultimate (64-bit)
- Windows 7 SP1 – Professional (32-bit)
- Windows 7 SP1 – Professional (64-bit)
- Windows 7 SP1 – Home Premium (32-bit)
- Windows 7 SP1 – Home Premium (64-bit)
- Microsoft USB/DVD Download Tool
Potential error message that bootsect could not be copied:
You may receive the error “Files copied successfully. However, we were unable to run bootsect to make the device bootable.”
If so, download and unzip the following file: bootsect7600x86
Next, navigate to the following directory, and place the downloaded bootsect.exe file in the same directory as the Windows7-USB-DVD-Download-Tool.exe file.
- Windows Vista / 7 / 8: C:\Users\Username\AppDat\aLocal\Apps\Windows 7 USB DVD Download Tool
- Windows XP: C:\Documents and Settings\Username\Local Settings\Application Data\Apps\Windows 7 USB DVD Download Tool
Run the Windows 7 USB DVD Download Tool again, and this time, you should receive a successful completion message.