If you want to disable Windows 7 updates and want to update it manually then here is the method to turn off Windows 7 automatic updates.
How to Disable Windows Updates in Windows 7?
Type “System and Security” in Start menu search
Navigate to “Windows Update” > “Turn automatic updating on or off”
Select “Never check for updates” from drop down under “Important updates” section and click OK button
Now, the automatic Windows updates are disabled and see in Task Manager wuauclt.exe is also not available.