By default settings of Window 7 and Windows 8, your wireless Bluetooth mouse or keyboard should automatically reconnect after being left idle, but due to some unknown system configuration setting changes, the Bluetooth device may not do so. This problem is simple to fix, just make sure you login to Windows with Administrator rights because we will be making changes to device manager console that is administrator driven.
1. Some way launch Device Manager. Windows 8 users can go to charms window and search for “Device Manager” and click on the first option, while Windows 7 users need to click on Start button, type in “Device Manager” in the search box, and then hit enter.
2. Expand “Bluetooth” in device manager tree. Right click on the Bluetooth device and then select “Properties”.
3. Click on ‘Power Management” tab, and then uncheck the box “Allow the computer to turn off this device to save power”. Click “OK”, and close the device manager.
In the process, what we did is made sure that the Bluetooth is not turned off by the power management console. Did it solve your problem? Let us know in the comments below.