I4AM A dOCTOR AND I HAVE DISINTALLED TEREDO TUNNELING DRIVER FOR WINDOWS 7 BECAUSE I WAS NOT ALLOWED TO ACTIVE THE PROGRAMME.
IN REGEDIT I HAVE CREATED A NEW KEY DWORD 32 BITS WITH THE NAME DisabledComponents which was missing value 0.
Reboot but always the same code error 10. So I erase the driver...
But how can I download and install the driver?
That driver is built in to Windows and as far as I know you can't download it. I was getting an error with it too. So I disabled that device in Device Manager (right-click >> disable). Problem fixed and device is obviously not required because everything else works okay.
The Teredo Tunneling interface is enabled by default but inactive until required, it is used for tunneling IPv6 traffic over an IPv4 infrastructure, so unless you need to be communicating with remote IPv6 endpoints it can safely be disabled.
You can do this by using Device manager as Phil has suggested or by using netsh from the command line.