Final answer:
To resolve the issue of Windows not finding a driver for an external SSD, access the Device Manager through the Control Panel to manually install or update drivers.
Step-by-step explanation:
When Windows cannot find a suitable device driver for an external solid-state drive (SSD), the best course of action is to access the Device Manager. To do this, you would go through the Control Panel. The Device Manager allows you to see all of the hardware that is installed on your computer, update device drivers, and manage hardware settings. This is the place where you can manually install or update drivers for a new device like an external SSD.