[methos666]

How can I use a Fujitsu Scansnap S510 that runs on Mac OS to run using Windows OS (XP, Vista or 7)?

 

[pip22]

Visit the makers website and see what other drivers they have for that model: PFU Imaging Solutions Europe Limited : Fujitsu Europe, Middle East and Africa

if it's an old model (eg 4 years +) you may find they haven't made a Windows 7 driver for it. If there's a Vista driver you can try that. If there's no Vista driver either, you'll have to buy a new scanner.