If the services running on your ECS instance require the screen to stay on, or if a locked screen may interrupt your normal workflow, refer to this topic to disable the screen saver on a Windows-based ECS instance.

What is screen saver?

A screen saver is a program that displays images or animations when the computer is inactive. At first, it was designed to prevent the burn-in effect on old-fashioned CRT monitors, which refers to the permanent marks left by static images displayed on the screen for a long time. Modern liquid crystal displays (LCDs) and light-emitting diode (LED) displays are largely unaffected by burn-in.

Usage note

To disable the screen saver, you can configure the "Personalize" settings or modify the Registry. Note the following:

Method	Feature	Application scenarios
"Personalize" settings	Operate through a graphical user interface, which is more intuitive and secure.	Suitable for daily use by most users.
Registry	Directly edit system configurations. This method is suitable for scenarios that require more fine-grained control, but it is complex and risky.	Applicable to scenarios that involve system-level configurations or unified configurations in an enterprise.

Prerequisites

You have purchased an ECS instance.

The ECS instance status is Running.

Procedure

In the example provided in this topic, Windows Server 2022 Datacenter Edition 64 bit English image is used.

Via "Personalize" settings

Via Registry

Log in to the target Windows instance.

Right-click the blank area of the server screen, and then click the "Personalize" button.

In the left directory tree, select "Lock screen", and in the right "Lock screen" module, click the "Screen saver settings" button at the bottom.

Set "Screen saver" to "(None)", and uncheck the "On resume, display logon screen" option.

Click the "Apply" button and the "OK" button in sequence. After this, the screen saver is disabled.

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