ASUS Update Check Removal Tool

This will not remove the AsusUpdateCheck service completely.

Inside your ASUS BIOS under Tool check if there is a Asus Armory Crate setting. Look at it. If it is enabled that means that at each boot that AsusUpdateCheck service will return.

To permanent remove things:
CMD as admin: sc delete AsusUpdateCheck
Remove (regedit) inside the registry the key:  [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Asusgio3]
Check if [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\AsusUpdateCheck] is also removed (by that sc command)
Remove C:\Windows\System\AsusUpdateCheck.exe and AsusDownloadLicence.exe
Remove C:\Windows\System\drivers\asIO3.sys and asusgio3.sys
Reboot and enter the BIOS turn that Install AsusArmoryCrate & Update option to disabled en Boot your system.

This will permanently remove the remains or leftovers of the ASUS Armory Crate. Did the above first and deleted the service but that AsusUpdateCheck service kept on returning..... That BIOS setting was the final step.