Touchpad of notebook sometimes does not work after booting

It sounds like a device driver issue. You can try to find a driver that supports your touchpad, even if Fujitsu hasn't released an official one yet. Find out what touchpad you are using in the device manager and try to track down a current driver at that company's site.For example, I have a Lenovo Thinkpad, that uses a Synaptics touchpad. I could go to Synaptics.com and download their driver - although I don't need to since Lenovo provides it on their site and through their update software.Another thing to consider is that this might be an actual device failure. Usually, the default Windows drivers are good enough when it comes to HIDs (human input devices like mice and keyboards). You could take it for a technical inspection, if still under warranty.

that seems driver issue so download latest synaptic device driver from their support website. I'm not 100% sure but all Fujitsu Siemens Esprimo laptops using synaptics touch pad so I hoper after installing that driver and rebooting your system, all touchpad issues gone.