It's tomtom fault. some version of tomtom update bluetooth driver with a very old bluetooth driver. in \Windows directory rename files btsdkce30.dll and btcedrivers.dll if I remember correctly.
thanks a lot. I've found the drivers which are:
BtCoreIf.dll
BtSdkCE30.dll
ttn6bt2003.dll
usually located in \windows
It's working now like a charm
have a great day & cu
wf