Hi Old Man

,
No folder twain_32\paprport\ exists in C:\Windows
Okay do this:
Uninstall Paperport and then uninstall the Visioneer One Touch Scanner.
Reboot.
Again look in C:\WINDOWS\twain_32\ folder for the Paperport or Visioneer
One Touch and remove the folder, if found. Also search for Paperport under
C:\Program Files\Scansoft\Paperport and remove them as well.
Using Regedit, delete this key and its sub-keys:
HKEY_CURRENT_USER\Software\ScanSoft\PaperPort
HKEY_LOCAL_MACHINE\SOFTWARE\ScanSoft\PaperPort
Reboot the computer.
Do not connect the Visoneer One Touch before installing its drivers,
since it is USB Connection.
Install Paperport first, via Custom install to set Paperport Desktop
folder and reboot. Do not Start Paperport up.
Now install the Visioneer OneTouch 8600 Driver. Reboot the computer.
Once rebooted, plug the scanner back in and let Windows find the
scanner. Once found and installed, reboot.
Now once rebooted Start Paperport up. Don't worry about the program
operation yet. But check in the program for latest updates. There should be
3 updates for Paperport 9.0 Deluxe version. Not sure how many for just
Paperport 9.0 version. Reboot after each update. Once completely up-to-date,
use Explore and go to C:\Program Files\ScanSoft\PaperPort and find initwain
and click it. Close Explore.
Start Paperport. Set preferences. Open Paperport to folder to scan to.
Select Source or Scanner to use. Click Scan, which should launch the
Visioneer OneTouch Scan Manager. Try scanning.