: Plug your Umax scanner back into a USB port (preferably a USB 2.0 port, as older scanners sometimes struggle with USB 3.0 ports) and turn it on.
Right-click the unrecognized scanner (usually marked with a yellow exclamation point) and select . Umax Usc 5800 Scanner Driver For Windows 7 64 Bit
VueScan is a third-party scanning application that bypasses the need for manufacturer drivers entirely. It communicates directly with your scanner’s hardware, making it an ideal solution for legacy devices like the Umax USC 5800. : Plug your Umax scanner back into a