Hi,
. What happens when you try to install the drivers?
Please follow the methods and check the issue:
Method 1:
I would suggest you to perform a Clean Boot to prevent any conflicting third party applications from interfering with your computer.
To place the computer in a Clean Boot state, you need to follow the steps from the article mentioned below and check the issue.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7: ****http://support.microsoft.com/kb/929135
Note: You need to follow Step 7 from the article mentioned above to get the computer back to Normal Startup after performing all the steps.
If the issue still persists, then follow the next method.
Method 2:
Fix problems with programs that can't be installed or uninstalled:http://support.microsoft.com/mats/Program_Install_and_Uninstall
For more information:
Contact Fujitsu Scanners Support: http://www.fujitsu.com/us/services/computing/peripherals/scanners/contact/index.html
Hope this helps.