The thread discusses whether ISO files from Microsoft's support site include all updates up to the selected month or only that month's updates, with clarification that these ISO images contain updates released simultaneously with security updates. The original poster is frustrated because Windows Update isn't functioning properly on multiple computers and seeks a more efficient solution for updating multiple Windows 7 systems, especially given their need to re-image numerous school computers annually. Others suggest trying ISO images for cumulative updates and recommend troubleshooting methods or considering upgrades, but the main concern remains finding a reliable, time-efficient way to update multiple systems without manually downloading monthly updates.