Threat

I have a laptop dell XPS 14 l421x with window 10 pro when I restart my laptop window defender it works fine but after few seconds Windows Defender is not working. Threat service has stopped. restart now this warning shown after few seconds I tried to restart the services of window defender...

In the last few days my PC is totally unusable, I got some kind of virus on my PC which deleted my Antivirus, disabled Windows Defender, disabled Windows update, every time when I turn on my computer it probably starts to mine bitcoin because my GPU is much louder and it's usage is over 50%. I...