>>Yes, I mean the Bluetooth vendor or any device that you are trying to connect to your PC. They must provide a driver for the respective operating system, but remember windows 7 is near to be ended in support and maybe they are not providing support anymore.

>The PC will be upgraded to Windows 10 next week. So, I will do another test.

>Thanks

Great! In my personal opinion Windows 10 is the best operating system from Microsoft since ever, this W10 is really using all the good stuff from old Windows plus the best new functionalities for any new OS.

Windows 3.1 first popular windows, 3.11 network starting, Windows NT, Windows 95, Windows NT 4, Windows 98, Windows 2000, Windows Me**, Windows XP, Windows Vista**, Windows 7, Windows 8**, Windows 10.
**Windows Millenium was a total disaster, Windows Vista was a very bad version but starting point for windows 7
**Windows 8 was a nightmare due to many changes with no warnings or helpers but in the end it helped to change history of windows, opening the new path for Windows 10.