Right-click the button and select Terminal (Admin) or PowerShell (Admin) .

Open the Microsoft Store and search for "Windows Camera" . Click Get or Install to download it back onto your system.

If the Store app won't work, you can force a reinstall:

Sometimes you don't need a new "app," but rather the driver that tells your laptop how to talk to the hardware. Camera doesn't work in Windows - Microsoft Support

Type Get-AppxPackage -allusers Microsoft.WindowsCamera | Foreach Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" and press . 2. Downloading & Updating Camera Drivers

If the default camera app is missing from your Start menu, you can re-download it directly from Microsoft.

Most modern laptops come with a built-in camera and a pre-installed app to use it. However, if you’ve accidentally deleted the software, reinstalled Windows, or are using an external webcam, you might need to "download" or reinstall it manually. 1. How to Reinstall the Official Windows Camera App