Tonight during the preparation of an usb stick using Windows 7 USB/DVD Download I got an error message about bootsect just at the end of the creation of bootable usb stick. Following the troubleshoot link I arrived on the following

When creating a bootable USB device, I am getting an error about bootsect

To make the USB device bootable, you need to run a tool named bootsect.exe. In some cases, this tool needs to be downloaded from your Microsoft Store account. This may happen if you’re trying to create a 64-bit bootable USB device from a 32-bit version of Windows. To download bootsect:

  1. Login to your Microsoft Store account to view your purchase history
  2. Look for your Windows 7 purchase.
  3. Next to Windows 7, there is an “Additional download options” drop-down menu.
  4. In the drop-down menu, select “32-bit ISO.”
  5. Right-click the link, and then save the bootsect.exe file to the location where you installed the Windows 7 USB/DVD Download Tool (e.g. C:\Users\username\AppData\Local\Apps\Windows 7 USB DVD Download Tool).
  6. Once the file has been saved, go back to the Windows 7 USB/DVD Download tool to create your bootable USB device.

Now my problem is that I haven’t ordered my iso on Microsoft Store but downloaded it from MSDN, so I can’t download bootsect from Microsoft Store.

I could find bootsect.exe in a Windows 7 32 bit iso which came also from MSDN. Then after following the help documentation I successfully created a bootable usb stick with Windows 7 64 bits.

Tomorrow evening I will start the re-installation of my machine with a fresh Windows 7 64 bits (running 32 bits till now) and a new Seagate Momentus XT, 7200rpm, 32MB, 2.5”, 500GB, SATA-II