Hi, Have recently started getting the above error code for any Office 2007 updates (all appear to be security updates starting with the KB951596-related update which was issued on 12th August. There are now 6 updates all with the same problem. I have Office 2007 ultimate and am trying to install on Vista 32 bit (SP1). All other MS updates install correctly. I've searched for help on this (and not found much) - just to say that I have tried the suggestions in the KB article 913754 and have also tried downloading and installing the updates separately. I have also tried doing this in safe mode - all to no avail. Please let me know if there's any other additional info needed to start to address this (I run Kaspersky 2009 and it's clearly set to allow appropriate access for these downloads). ANY help appreciated - I've drawn a blank (and I'm NOT a techie-whizz, so please respond without making that assumption!!). Thanks Huw ...