Windows Vista with Service Pack 2 (SP2) and later provides software support that lets Bluetooth-enabled keyboards and mouse devices wake the computer from sleep (S3) or hibernate (S4) system power states. For such a wake to be successful, the Bluetooth module must be self-powered and must have enough power to wake the computer. Even if Windows enables wake from the S4 system power state, the computer will not wake if the Bluetooth module has no power when the computer is in S4.
To enable Remote Wake in software, verify that the Bluetooth module can support wake and set the following registry values:
HKLM\\System\\CurrentControlSet\\Services\\Bthport\\Parameters \\SystemRemoteWakeSupported : (DWORD) 1
HKLM\\System\\CurrentControlSet\\Enum\\USB\\\\ \\Device Parameters\\RemoteWakeEnabled : (DWORD) 1
HKLM\\System\\CurrentControlSet\\Enum\\USB\\\\ \\Device Parameters\\DeviceRemoteWakeSupported : (DWORD) 1
Note  If the Bluetooth radio’s property page in Device Manager has a Power Management tab, the radio can support wake. If no Power Management tab exists, the radio might support wake, but it is unlikely.