Turning off the screensaver can be done by using PowerShell to change three registry settings.
You can check your current settings in your registry at this location:
HKEY Current User\Software\Policies\Microsoft\Windows\Control Panel\Desktop
Run this code in PowerShell
#Turn Off ScreenSaver
Set-ItemProperty -Path ‘HKCU:\Software\Policies\Microsoft\Windows\Control Panel\Desktop\’ -Name ScreenSaveTimeOut -Value 0
Set-ItemProperty -Path ‘HKCU:\Software\Policies\Microsoft\Windows\Control Panel\Desktop\’ -Name ScreenSaveActive -Value 0
Set-ItemProperty -Path ‘HKCU:\Software\Policies\Microsoft\Windows\Control Panel\Desktop\’ -Name ScreenSaverIsSecure -Value 0