Hi,
You can follow the guidance provided by SSengupta-4080 to uninstall some apps and programs.
However, some apps and programs are built into Windows and can't be uninstalled, such as Microsoft Photo, Xbox Game Bar....
We recommend not unstalling these apps and programs. But if you really need to uninstall them, please try below PowerShell command.
For example, if you would like to uninstall Xbox:
Run Powershell as administrator: Get-AppxPackage xboxapp | Remove-AppxPackage
Or you can run Get-AppxPackage | select-string <key words of the app> to list the AppxPackage of this app. And then run "Remove-AppxPackage <the package name returned by last command>"
For your reference:
https://www.howtogeek.com/224798/how-to-uninstall-windows-10s-built-in-apps-and-how-to-reinstall-them/
https://gist.github.com/joshschmelzle/04c57d957c5bb92e85ae9180021b26dc
If some apps still cannot be uninstalled, it means Windows do not allow them to be uninstalled.
Thanks,
Eleven
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