You could try and reinstall the drivers for the usb ports on the PC. Go into device manager and locate the USB, remove it and then reboot the Pc. windows will reinstall the drivers when rebooted. Alternatly see if there are any updated driver on the PC manufactuers website. what ever you do do not format the memory stick as this can erase all your photos. always make a back up..
Fujitsu Lifebook P727 laptop review