: This is the most reliable way to use legacy scanners on modern 64-bit systems. VueScan includes its own drivers and supports 57 different UMAX models, including the Astra series. It bypasses the need for an official manufacturer driver.

The Astra 5800 and 5600 share the same chipset (CIS sensor and core logic). The 5600 driver is digitally signed and works perfectly with the 5800 on Windows 7 64-bit. Umax Astra 5800 Scanner Driver For Windows 7 64 Bit -UPD-