In a game that saw the return from injury of Shinji Kagawa, Sir Alex Ferguson's men were in total control for the vast majority of the game and they finally managed to keep a clean sheet.
The result never looked in doubt, particularly after nine minutes when Ashley Young's cross-come-shot deflected off West Brom's Gareth McAuley for an own-goal.
Apart from a short spell in the second half, the rest was plain sailing for the Red Devils. Robin van Persie confirmed the points for the Old Trafford outfit on 90 minutes with a superb 21-yard curling strike.
Keep reading for a look at some key Man Utd players.