\boot\bootsect.exe is not a valid win32 application

I am currently running windows xp pro 32 bit OS. Also in my possession is a windows 7 ultimate 64 bit operating system's ISO file. My goal is to start the installation of WINDOWS ULTIMATE 64 BIT through a USB pen drive. I finally found a promising link via google search. ( http://www.bwana.org/2009/01/11/how-to-install-windows-7-beta-from-a-usb-drive-to-an-hp-mini-1000-without-vista/ ) I managed to get through till the 12th step. In the 13th step, I am stuck. I get the error -k:\boot\bootsect.exe is not a valid win32 application as I am running a 32 bit OS.Is there anyway to get through this?

Few sites offer a free download of a 32 bit version of Windows 7's bootsect.exe. Should I replace my 64 bit bootsect.exe(present in my original Win7x64Ultimate ISO file) with a 32 bit one and create an ISO file with the rest of the files intact, will I be able to get through the 13th step?

Also, I have 5 drives in "My Computer". All of them partitioned using the NTFS file system. My XP Pro 32 bit is in C: drive. I do not mind losing the data in C: as that is where I've planned to install win7 ultimate 64-bit. However, I do want the files in the other drives. My question is-"Will I be able to access those files in the other drives after installing win7 x64 in C: drive??"

A million thanks to any help.


If you bought Widnows 7 from the MS Store:

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.




If you didn't - Instructions I was able to find:


Follow these instructions for getting around the bootsect error:

a. Download and install the Windows 7 USB/DVD Download Tool program as indicated on theMicrosoft Store web site.

b. Download a working 32-bit version of bootsect.exe . Below is a link to 32 bit bootsect.exe:

From: http://www.sevenforums.com/installation-setup/54443-32-bit-bootsect.html

c. Once downloaded, copy the BootSect.exe file to the same folder that includes the installedWindows7-USB-DVD-Download-Tool.exe file. The default install directory of that file in Windows Vista isC:\Users\USERNAME\AppData\Local\Apps\Windows 7 USB DVD Download Tool\ (you'll need to look for it in XP)

d. Run the Windows 7 USB/DVD Download Tool application as indicated on theMicrosoft Store web site. The end result will give you a bootable USB flash drive that contains everything you need to install the 64-bit version of Windows 7.


Have Questions About Installing Windows 7?
FAQ - Common Windows 7 Installation Questions & Answers
MCC 2011


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Last updated June 6, 2020 Views 34,932 Applies to: