Hiya Bat,
If you mean screen freeze in your browser or in a specific program if you press the
Ctrl Alt Del, buttons at the same time it will bring up the windows task manager window, then you find the program that has frozen in the list under applications, click on it it, then click end task.
This will close down your browser or any other application that is frozen and let you restart it, without having to reboot.
Ps sometimes it takes a while for it to close it.
Hope this helps lass :wink: