There are a few ways to make your computer screen invisible to others, depending on the situation and the level of privacy you need. Here are some methods:
Use a privacy screen filter: A privacy screen filter is a physical screen that attaches to your computer monitor and reduces the viewing angle so that only the person directly in front of the screen can see the contents. These filters are available for different monitor sizes and are easy to install.
Adjust the screen angle: If you don't want others to see your screen, you can adjust the angle of your monitor to face away from them. This will make it difficult for others to see what's on your screen.
Use a virtual private network (VPN): If you're concerned about someone monitoring your online activity, using a VPN can help keep your browsing history private. A VPN encrypts your internet connection and routes it through a private server, making it difficult for others to see what you're doing online.
Use a screen-sharing software: If you need to share your screen with someone but want to keep certain information private, you can use a screen-sharing software that allows you to share only a specific window or application, rather than your entire screen.
Close sensitive documents and applications: If you're working on sensitive documents or applications, make sure to close them when you're done to prevent others from accessing them. You can also set up a password-protected account to restrict access to your computer.
These are some methods you can use to make your computer screen invisible to others. Choose the method that best fits your needs and the level of privacy you require.