New command option available in Windows AIK 1.1’s BOOTSECT.EXE to update MBR

Windows AIK 1.0 included a BOOTSECT.EXE tool that could update the boot sector to either a Windows Vista/Server 2008 (/nt60) or a Windows XP/Server 2003 (/nt52) version.  But it didn’t provide a way to update the master boot record (MBR).  If you wanted to do that, you had to boot into the Windows recovery environment and then run “FIXBOOT /MBR”.  The downside of that: it can’t easily be automated.  (What’s the difference between a boot sector and an MBR?  Read up on it at

The MBR code was updated for Windows Vista, and if you install Windows Vista using SETUP.EXE (e.g. straight from the DVD or using MDT Lite Touch) it will update the MBR appropriately.  And running DISKPART “CLEAN” will also update the MBR.  But if you aren’t wiping the disk and aren’t using SETUP.EXE, the old MBR would be left in place.

Why does this even matter?  One noticeable reason:  BitLocker wants to see a Windows Vista MBR, and won’t let you enable BitLocker if it doesn’t find one.  So you need a way to do that, something easily automated.  That something is a new version of BOOTSECT.EXE included in Windows AIK 1.1.  This version has a new /MBR switch that takes care of installing the latest MBR.

This is actually related to why ConfigMgr 2007 SP1 requires Windows AIK 1.1: it wants to use the new BOOTSECT.EXE /MBR command, so it needs the latest BOOTSECT.EXE /MBR command.  The old BOOTSECT.EXE will fail if you specify this previously-nonexistent command line option.  (MDT 2008 Lite Touch uses slightly different logic: it tries the BOOTSECT.EXE /NT60 /MBR command and if it fails it tries again without the /MBR switch.  So we can still support Windows AIK 1.0 and 1.1.)

Comments (2)
  1. showbox says:

    Thanks for the great info. I really loved this. I would like to apprentice at the same time as you amend your web site, how could i subscribe for a blog site?
    For more info on showbox please refer below sites:
    Latest version of Showbox App download for all android smart phones and tablets. – It’s just 2 MB file you can easily get it on your android device without much trouble. Showbox app was well designed application for android to watch movies and TV shows, Cartoons and many more such things on your smartphone.
    For showbox on iOS (iPhone/iPad), please read below articles:
    Showbox for PC articles:
    There are countless for PC clients as it is essentially easy to understand, simple to introduce, gives continuous administration, effectively reasonable. it is accessible at completely free of expense i.e., there will be no establishment charges and after establishment
    it doesn’t charge cash for watching films and recordings. Not simply watching, it likewise offers alternative to download recordings and motion pictures. The accompanying are the strides that are to be taken after to introduce Showbox application on Android.
    The above all else thing to be done is, go to the Security Settings on your Android telephone, Scroll down and tap on ‘Obscure sources’.

Comments are closed.

Skip to main content