There is some good news in this. If I'm correct, you can manually run the security only update from Microsoft's Update catalog page. Has anyone tried that instead?
This is speculative, but I think if one attempts to take that route of circumventing the issue it would probably fail to install once it detects the processor type.
My Computer
At a glance
Windows 7 Home 64-bit
- Computer type
- PC/Desktop
- OS
- Windows 7 Home 64-bit