Question

Santivirus cannot be removed which is a malware which hides itself and cannot be removed from registry manually

Answer 1

You can remove it only from Safe mode.
But first, check that you know Administrator password (not PIN).

I can help you.

1. Open UnHackMe,
2. Click "Help in Removal" button on the main screen.
3. Choose "Send us RegRunLog".
4. Enter your e-mail, name or nick.
5. Describe your problem.
6. Accept our Privacy Policy.
7. Click "Upload" button.
   If you have any troubles with it, you can manually attach "regrunlog.txt" from your desktop and send us by e-mail to support@greatis.com.
   I will check your log and send you a solution as soon as possible.