1) Download this file:
азместить файл в Интернет or
Яндекс.Народ
2) Extract archive to folder on desktop
3) Plug in your Scanner
4) Go to Control Panel (Windows 7 - 64 and 32 bit)
5) Go to Device Manager
6) Go to Imaging devices (or Other devices)
7) Find what windows have installed Right Click
8) Update Driver Software.
9) Automatically install from Browse to your desktop or position where you extracted archive
10) If ask it's not certificated In any case install it
It is working, I tested this in Windows 7 ( 32bit )