: Download the trial version; it usually detects the scanner automatically without needing a separate UMAX driver. 3. The "Samsung CLX" Workaround

The most reliable way to use the Astra 5800 on modern 64-bit systems is via VueScan by Hamrick Software .

: VueScan includes its own reverse-engineered drivers for over 7,000 scanners, including 57 UMAX models.

In , follow the "Update Driver" steps mentioned above. Instead of choosing "Microsoft," select Samsung . Choose the CLX Samsung device driver.

In the list, select as the manufacturer and choose USB scanner device . Click Yes to any warnings and finish the installation. 2. Third-Party Software: VueScan (Easiest & Most Reliable)