Hello Raffaele, Dave,
The button problem can be resolved by following these steps (links are for W10 64bit edition)
1. Go to control panel -> Program and Features -> uninstall the Windows Driverpackage Fujitsu America.
2. Restart the system
3. Download and install the Fujitsu Button Driver with the following command:
DPInst.exe /s /sehttp://support.ts.fujitsu.com/indexdown ... 9ABEA8762F
4. Download and install the ´Fujitsu System Manager´ from the Fujitsu Support web page:http://support.ts.fujitsu.com/indexdown ... 2BAFAE600B
During setup the current installation of ´Fujitsu System Manager´ is uninstalled automatically first, and then it is re-installed again.
5. After successful installation, restart the system.
After Windows has started again, the ´Fujitsu System Manager´ should be installed correctly, the error should no longer appear.