If the icon disappeared from your taskbar, you can re-enable it in Control Panel > Change Bluetooth settings by checking "Show the Bluetooth icon in the notification area".
Обновление драйверов Bluetooth в Windows - Microsoft Support
If your laptop is very old and doesn't have a built-in Bluetooth chip, downloading software won't work. You will need to buy a small USB Bluetooth adapter.
For most modern laptops, you do not need to download a separate program for Bluetooth; the functionality is built into the Windows operating system. However, you may need a or a management app if it's not working correctly. How to Enable or Download Bluetooth Software
Before downloading anything, try enabling it through system settings. Go to Start > Settings > Bluetooth & devices (or Devices) and toggle Bluetooth to "On".
If the icon disappeared from your taskbar, you can re-enable it in Control Panel > Change Bluetooth settings by checking "Show the Bluetooth icon in the notification area".
Обновление драйверов Bluetooth в Windows - Microsoft Support
If your laptop is very old and doesn't have a built-in Bluetooth chip, downloading software won't work. You will need to buy a small USB Bluetooth adapter.
For most modern laptops, you do not need to download a separate program for Bluetooth; the functionality is built into the Windows operating system. However, you may need a or a management app if it's not working correctly. How to Enable or Download Bluetooth Software
Before downloading anything, try enabling it through system settings. Go to Start > Settings > Bluetooth & devices (or Devices) and toggle Bluetooth to "On".