If you have an old hard drive, install on a separate partition. Boot into XP when you need to scan. This is a nuclear option but 100% effective.
Important note: There is for this scanner either. Dual-booting to Windows XP 32-bit works perfectly, but dual-booting to any 64-bit OS will give you the same driver issue. umax astra 5800 scanner driver for windows 7 64 bit
Right-click and choose -> Browse my computer -> Let me pick from a list . If you have an old hard drive, install
hardware through the USB port, bypassing the Windows 7 64-bit operating system's need for native vendor driver files. Step-by-Step Installation: Disconnect your UMAX Astra 5800 Go to product viewer dialog for this item. scanner from your computer's USB port. umax astra 5800 scanner driver for windows 7 64 bit