One of the most annoying thing I noticed with Windows 10 is this... if you want to permanently uninstall this program just follow these steps.
Open Windows PowerShell
You can find Windows PowerShell in All Apps > Windows PowerShell > Windows PowerShell or just search for PowerShell in your Start Menu and make sure you run Windows PowerShell as Administrator.
Run the Command
Copy & Paste (You can Paste by Right Clicking inside the PowerShell) this command into PowerShell : Get-AppxPackage *photo* | Remove-AppxPackage and then just hit Enter, that's it! Game Over!
