Hello again, today my problem's is bluetooth, that is almost every time I turn on the computer is unavailable.
Most of the times, it just disappears from taskbar (I've attached the screenshot to my message) and even from device manager.
Sometimes reboot helps, but more often - do not.
Moreover, sometimes this problems touches my audio card, that I have to reboot drivers or roll them back.
Hope, you can help.
Thank you in advance.