Question

how to turn on bluetooth on computer if there is no bluetooth in the computer​

Answer 1

Explanation:

Turn on Bluetooth on your PC if it's not on already. To do this, select the Start button, then select Settings > Devices > Bluetooth & other devices and turn on Bluetooth. You can also use action center to turn on Bluetooth. To do this, on the taskbar, select action center > Bluetooth

Answer 2

If there is no Bluetooth module in your computer then you have to buy an USB Bluetooth USB Module a.k.a Bluetooth Adapter and plug it into your computer. There are many Bluetooth USB modules in the market, but I recommend the Tp-Link USB Bluetooth Module.