Louis van Gaal set his sights on Premier League glory after watching Manchester United hammer QPR 4-0 at Old Trafford.

Sixty days after being appointed United manager, Van Gaal finally earned his first competitive win thanks to goals from Angel Di Maria, Ander Herrera, Wayne Rooney and Juan Mata.

Van Gaal's new-look side, which contained three debutants, ran Rio Ferdinand and his QPR team-mates ragged, and had they taken their chances, they would have scored many more.

Van Gaal laid out his lofty ambitions for the 20-time champions after the encounter.

"I want to win the Premier League title," the United boss said.

"If it is not this year then the second or third year. I want to give a championship to the fans."

Van Gaal was happy to finally end his frustrating four-match winless run in the league and dedicated the victory to his wife Truus.

"This is special because it is also the birthday of my wife. I have already given her a present but she said the biggest present shall be the victory. We give it to her," Van Gaal said.

Di Maria's free-kick cleared everyone in the box and nestled into the goal to give United the lead.

The British record signing set up Mata for United's final goal and he also played a part in the build-up to Herrera's strike, and that of Rooney, who is now joint-third highest scorer in Premier League history.

The fact that United were able to bring Radamel Falcao off the bench for the final 23 minutes shows just how strong Van Gaal's squad is in attack.

Despite the win, Van Gaal was not in totally jubilant form after the final whistle.

The Dutchman, who has been set the target of a top-three finish, thinks his men can improve a lot, although he knows he will have a more settled squad now that the transfer window has closed.

"The result is fantastic, but I think we can do much better," Van Gaal said.

"I said (before the match): 'let's make a new start today'.

"I have made now the (squad) selection of 27 players - three goalkeepers and 24 players, you shall see tomorrow with the photoshoot, that is our squad."

Van Gaal, who ditched his five-man defence for a 4-4-2 diamond, even managed to restrain himself when praising Di Maria.

"When you prepare three goals and make the first goal by yourself then you cannot play bad but he had a lot of unnecessary losses so we can do better," the former Ajax manager said.