If your computer still requires you to press CTRL ALT DEL upon login, this simple guide will teach you how to disable it. Note that this will require administrator access and it might not work on Windows Home editions as it requires to modify local group policies.
Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options
Starting from your next restart, you should no longer be required to press CTRL+ALT+DEL at the Windows login prompt.
If you’re running on older Windows version the policy might be called “Disable CTRL+ALT+DEL requirement for logon”