Your office uses Windows Vista. This morning, a patch was applied automatically. Suddenly, the users who have scanners attached to their computers complain that they cannot access the scanners. When y

Reinstalling Vista is an extreme and time-consuming measure for a driver-related issue, and it's unlikely to be necessary when simpler troubleshooting steps exist.

Since the scanners worked before the patch, the issue is likely software-related (driver) rather than hardware incompatibility with Vista itself.

Even without an exclamation point, a patch can corrupt or render a driver incompatible without Windows explicitly flagging it as faulty. Manually uninstalling and reinstalling the driver forces a clean installation of a potentially updated or corrected driver, resolving the communication issue between the OS and the device.

While rolling back the patch might resolve the issue, reinstalling the driver is a more targeted and less disruptive first step, as the patch might contain other important security or bug fixes.