Disable through Group Policy

• 1). Log into your computer with a user account that has Administrator privileges.
  
  Launch the Group Policy Editor utility. Click on the "Start" menu, click "Run", type "gpedit.msc" (without quotations) on the provided text field and click "OK".
  
  
• 2). Expand the "Computer Configuration" tree-directory, under the "Local Computer Policy" item on the left pane.
  
  
• 3). Continue expanding down the following sub-folders: "Administrative Templates," "System", "Internet Communication Management", and click once on the "Internet Communication settings" folder.
  
  
• 4). Find the "Turn Off Access To All Windows Update features" setting, under the "Setting" column, on the right pane and double-click on it. Click on the "Enabled" radio button (this activates the disabling of the selected setting). Click "Apply" and "OK" to confirm.