WSUS offline updates not installing

I install updates every other week on quite a few standalone desktops every week at my job. One of the computers is running Vista 32 bit. I popped in my most recent WSUS offline disc to install updates, launch the .exe file, command prompt opens, the first few lines of commands get executed fine, but then after about 30 seconds WSUS restarts the computer acting as if it just did a batch of installations and then once the computer is restarted that process automatically restarts and it becomes and endless loop of not actually installing the new updates. Any ideas?