^^If you are not getting any windows updates then something is wrong with your system/os.There is no such thing as "mandatory spectre patch for win 10" without which you won't get other win 10 updates.Check that your win 10 enterprise version is not out of support.
*support.microsoft.com/en-in/help/13853/windows-lifecycle-fact-sheet
*support.microsoft.com/en-in/help/13853/windows-lifecycle-fact-sheet