I just installed TestMy yesterday and immediately after installation and running about 5 speed checks, my Lenovo failed to communicate with my printer. Worked perfect before. Realize coincidences occur but seems odd. Checked my laptop and found that now, Microsoft Teredo Tunneling Adapter & Intel Turbo Boost Technology Driver with Dynamic Power This device(s) cannot start. (Code 10). I have tried unsuccessfully for 2-days to uninstall and reinstall with no success. Is it possible the MyTest installation affected these 2 drivers? Can't see the connection but at my wits end. Retired IBM Systems guy.