Yes, I know, I did the same thing when I first bought my own machine. But from reading various sites around the track it appears that Microsoft just ignores users wishes these days.
A few things you can do:
- Go to C:\ProgramData\Microsoft\Diagnosis\ETLLogs\AutoLogger\AutoLogger-Diagtrack-Listener.etl
If AutoLogger-Diagtrack-Listener is present, close File Explorer and hit Windows key + R to open the Run command. Type:
Regedit and click OK to open the Registry editor and navigate to the following key:
- HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\WMI\Autologger\AutoLogger-Diagtrack-Listener
Expand the tree to AutoLogger-Diagtrack-Listener and then click this subkey:
{DD17FA14-CDA6-7191-9B61-37A28F7A10DA}
In the right hand pane, you'll see a key called Enabled. Right click that and click
Modify. Change the figure 1 into a 0 and click OK. It should look like you see it in the screenshot afterwards.

A setting of 0 (zero) for the Enabled key changes it to Disabled.
This won't stop Microsoft sending KB3035583 to Windows Update, but the GWX Control Panel tool I mentioned earlier will prevent Windows 10 from installing.