In the command prompt window, type rstrui.exe and press Enter.
If you can still access your desktop, use reputable security tools to delete the malware. How to Remove United States Cyber Security Virus
: Turn your computer off and back on while repeatedly tapping the F8 key (for Windows 7 and earlier) or using the advanced boot menu (for Windows 10/11). Select Safe Mode with Command Prompt . Run System Restore : In the command prompt window, type rstrui
: Turn off Wi-Fi and unplug any Ethernet cables. In the command prompt window
: Once the process finishes, your computer will restart, and the lock screen should be gone.