Hi xrVivian
Thank you for the screenshots, I see the problem, you are infected with Segurazo, it is masking itself in a process named AntiVirus Service . . .
You should download and install the Free version of MalwareBytes, then boot your PC into Safe Mode and run a full scan with the free version of MalwareBytes to remove Segurazo
To boot your PC into Safe Mode:
Click the Power icon on your Start Menu
Press the Shift Key and click Restart
Your PC will boot into the Windows Recovery Environment
Go to Troubleshoot - Advanced Option - Startup Settings and click Restart
Upon restart, press 4 to enter Safe Mode
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