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#3 not a valid Win32 application

David Ondzes

I have downloaded the "latest" version and the last 3 labels and each gives me a popup box say the exe is not a valid Win32 application.

Downloaded with chrome, using win7 pro 32bit.

E:\Downloads>dir tux*
Volume in drive E is DATA
Volume Serial Number is 8426-9544

Directory of E:\Downloads

06/16/2011 11:28 AM 4,236,280 tuxboot-windows-23.exe
06/16/2011 11:22 AM 3,316,744 tuxboot-windows-25 (1).exe
06/16/2011 11:24 AM 5,847,736 tuxboot-windows-25 (2).exe
06/16/2011 10:30 AM 4,984,188 tuxboot-windows-25.exe
4 File(s) 18,384,948 bytes
0 Dir(s) 2,641,207,296 bytes free


  • Anonymous

    You can check md5 code to confirm the binary is right or not.
    the md5 code is 389901b8729531a7680806bcc50dc008, you can get the code from source forge download page. Try to download again if the code mismatch.

    the md5sum tool can download from http://etree.org/md5com.html


  • Anonymous

    I have the same problem - popup box stating tuxboot-windows-25.exe is not a valid win32 application. Win XP Pro SP3, tuxboot-windows-25.exe downloaded under Firefox 3.6.22.

    The md5sum link referred to in the above post doesn't work either! See:
    C:\WINDOWS\system32>md5sum -c tuxboot-windows-25.exe
    md5sum: tuxboot-windows-25.exe: no properly formatted MD5 checksum lines found


  • Anonymous


    Same problem here:

    Windows 7 64 Bit. MD5 matches. I downloaded the file via Firefox 9.0 Beta.

    Anyway, great tool! :-)


  • Anonymous

    C:\Users\USERNAME\AppData\Local\Temp\un30996.exe is not a valid Win32 application. Fails.


  • Anonymous

    I also get the same error as the poster above and everyone in this other thread.

    An error is thrown during "Installing Bootloader". The error is always similar to "C:\Users\USERNAME\AppData\Local\Temp\un30996.exe", but the number in the filename changes. The resulting drive is unbootable.

    This is on 64-bit Windows 7 with tuxboot-0.6.exe (md5: 316f0f70f8b1c44aba4847c961fadeeb) while attempting to setup a gparted-live drive.


  • Anonymous

    When looking in my "C:\Users\USERNAME\AppData\Local\Temp\" directory it seems all the "un*.exe" files are still there, but they are all 0 kb in size.


  • Anonymous

    like others:

    during "Installing Bootloader (Current)"
    the error "C:\Users\USERNAME\AppData\Local\Temp\unXXXXX.exe is not a valid Win32 application." occurs
    when "Running special F:\utils\win32\syslinux.exe on F:"

    Win 7 32-bit
    tuxboot tested: 0.4, 0.5 & 0.6
    files: drbl-live-xfce-2.2.0-22-amd64.iso and drbl-live-xfce-2.2.0-22-i486.iso
    all MD5 OK


  • Anonymous

    I had the same error with Tuxboot version 0.6 on Win7 64-bit and WinXP 32-bit. I used the "Pre Downloaded' ISO option and it turned out in my case that the ISO download was incomplete. The program wrote it to disk without complaining but then the error occurred. I tried again with a complete ISO image and it worked as expected.



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