Pressing the control, alt and delete button at the same time shuts down the computer. It is often used when a computer freezes. It is not a safe way to shut down a computer, but upon rebooting, a scan may be ran to insure safety.
It allows you to bring up the Task manager.
David Bradley (an original designer of the IBM PC)
uncheck welcome center and fast user switching in the control planel
Pressing the control, alt and delete button at the same time shuts down the computer. It is often used when a computer freezes. It is not a safe way to shut down a computer, but upon rebooting, a scan may be ran to insure safety.
it is not control alt down it it control alt delete
hold ctr, then hold alt, then hold delete
Alt+F4
The cast of Control Alt Delete - 2004 includes: Glenn Persson as The Featus
push control alt delete (ctrl alt delete) and then goes to task.
control alt delete.
control alt delete
I am unsure of the model of your computer. If it is an apple PC then the rainbow icon is telling you that you have updates for an application. If it is a Mac PC then you can get rid of it by pressing control, alt and delete.
Presss control alt delete