Frozen laptop screens are usually caused by temporary software glitches or memory overload. First, try pressing Ctrl + Alt + Delete (on Windows) or Command + Option + Esc (on Mac) to open the Task Manager or Force Quit menu, and close unresponsive programs. Running multiple heavy applications, such as video editors or games, can use up your RAM, leading to freezes; consider upgrading RAM if your usage is heavy. Rebooting the laptop can also clear temporary glitches. If your laptop frequently freezes, perform a malware scan, as some malware can cause system slowdowns and freezing. Checking for system updates and installing them can also improve stability.