Saltgrass thanks for the reply!
My sorry, i didn't got what you mean by this, "Any chance the bios has been reset to disable the bluetooth?" If you're to asking me if i reset by bios, i didn't.. i didn't done anything, just i noticed that my bluetooth is not functioning..
And in this, "In Device Manager, what bluetooth radios are you showing." Previously, there was a Bluetooth Peripheral Device presented on my Device manager, but now, its gone..
What do you think, what am i supposed to do?