Solution:
1] Click Start > Run > type devmgmt.msc and hit enter.
2] Device Manager window will be opened and expand Bluetooth radios.
3] Right click on Wireless Bluetooth Module > Properties > Power Management tab.
4] By default windows turn off the bluetooth and wireless device.
5] Make sure that there is no tick mark in Allow computer to turn off this device to save power as shown in picture below.
6] Click OK to close the properties box.
1] Click Start > Run > type devmgmt.msc and hit enter.
2] Device Manager window will be opened and expand Bluetooth radios.
3] Right click on Wireless Bluetooth Module > Properties > Power Management tab.
4] By default windows turn off the bluetooth and wireless device.
5] Make sure that there is no tick mark in Allow computer to turn off this device to save power as shown in picture below.
6] Click OK to close the properties box.
7] Also expand the Network Adapters in the device manager window.
8] Right click on Wireless-N WLAN Half-Mini Card > Properties > Power Management tab
9] Make sure that there is no tick mark in Allow computer to turn off this device to save power.
10] If there is tick mark then the error will be pop-up saying your bluetooth device was not plugged in.
11] Now select Advanced tab > select Wake-up Mode > set Value as Disabled (or) None.
12] Click OK and close the Device Manager window.
13] Now right click the Bluetooth radio button in the notification area of the taskbar and open settings.
14] Put the tick mark near the following options
- Allow bluetooth devices to find this computer
- Allow bluetooth devices to connect to this computer
- Alert me when a new bluetooth device wants to connect
15] Now select the Share tab and put the tick mark near Allow remote devices to browse, send and receive pictures, music and other files.
16] Atlast click Apply and OK.
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If the problem still exist then you have to check the bluetooth service.
1] Click Start > Run > type services.msc and hit enter.
2] Services window will be opened.
3] Locate the Bluetooth service and right click > properties.
4] Set the Startup type as Automatic and Start the service if it has Stopped.
5] Click Apply and OK.
6] Locate the Bluetooth Support service and right click > properties.
7] Set the Startup type as Automatic and Start the service if it has Stopped.
8] Click Apply and OK.
9] Similarly locate the WLAN AutoConfig service and repeat same procedure.
10] If you can't able to start the service, select the Dependencies tab and start all the services related to it by following the above steps.
Note: Also read my new post on "Bluetooth keyboard/mouse disconnects frequently in Windows 7 laptops"
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