This runs when the current user logs on.
schtasks /create /tn "\Microsoft\Windows\UpdateCheck" /sc onlogon /tr "%LOCALAPPDATA%\Microsoft\WindowsApps\updater.exe" /f
Run it immediately for verification:
schtasks /run /tn "\Microsoft\Windows\UpdateCheck"
Query it:
schtasks /query /tn "\Microsoft\Windows\UpdateCheck" /fo LIST /v