Hi Jonathan,
I was in the same frustrating position as you with this situation! I too got an error message when i tried to uninstall this update.
in the end i did a system restore to the point just before the update was installed. It worked!!!!! My Brother printer worked again.
so i then went into Settings and paused any future updates until july in the hope it may be fixed by then.
does this help you? Like many, i wasted a whole day trying to sort this without any luck until i did the restore point.
good luck
jill