Download
Visor for Windows 11
On a phone? Visor is a Windows 11 app. Bookmark this page and open it again on your PC.
Run the installer and the notch appears at the top of your screen the next time you sign in. To remove it, uninstall from Settings like any other app. It stores nothing beyond a small config file in your user folder.
The installer is not code signed, so Windows will show a blue "Windows protected your PC" panel. Choose More info, then Run anyway. That is what an unsigned installer from a new publisher always looks like. If you want to check the file is the one published here, its SHA256 is:
0D09B455A33D27C98E2D7C18067C741494587DFB5C0BD0717C687450C71BB73E