The Magpies have garnered just a solitary point from their opening five League One fixtures but they secured their second win in eight games in all competitions with victory at Meadow Lane.
But McGregor gave County the lead five minutes before half-time when he let fly with a low shot from 20 yards which beat Lyness down to his left.
Ian Sharps nodded wide from Jack Dyer's corner and substitute Rene Howe's clever flick was well blocked by Bialkowski as Burton turned up the heat but County held on.
- Sports & Recreation
- Dean Lyness