I have a 3 month old Sony Vaio running Windows 7 and a Microsoft Bluetooth mouse. The mouse worked perfectly, but due to other problems I had to do a factory re-installation and now the mouse doesn;t work. At first Bluetooth found it, but the mouse did not work. I uninstalled it and now it won;t reinstall, saying "Adding the device failed resulting in an unknown error. The reported error code is: 0x80070015". Needless to say Sony and Microsoft blame each other!
Any idea on how I might get this device to work properly again, please?