For the scanner, official 64-bit drivers for Windows 7 were never natively released by UMAX, as the device primarily supported 32-bit systems up to Windows XP/Vista. However, you can still get it working on Windows 7 64-bit using the following methods: Recommended Driver & Software Solutions
Unreliable and not recommended for production use. umax astra 5800 scanner driver for windows 7 64 bit
The Umax Astra 5800 is with Windows 7 64-bit due to lack of official signed drivers. Reliable functionality requires either: For the scanner, official 64-bit drivers for Windows
Once you've obtained the correct driver, follow these steps to install it: For the scanner