Insisting the team would not allow themselves to make the same mistake again, the French defender said: "The one thing that sticks with me most about last year was the worst moment - that was the Champion League final defeat against Barcelona.
Related ArticlesBayern Munich v Manchester United: match previewFerguson relishes Bayern contestUnited prepare to face Robben and RiberyLahm: we're not among eliteFerguson defends Vidic over 'terrible tackle'Van Gaal: we are not afraid of Manchester United"That's what has stayed with me because I'm a winner. Barcelona won the final because they played really well. But even so I'm frustrated because I feel we didn't show the real Manchester United - we were just a bit too confident and sure of ourselves and we were caught cold.
"True we won the league and Carling Cup but missing out on the Champions League had the most impact on me."
United face Bayern Munich in the first leg of their quarter-final tonight, and Ryan Giggs, the veteran winger who featured in the side's astonishing victory over the German side in 1999, had acknowledge the challenge Sir Alex Ferguson's squad face.
"We're in the quarter-finals so they're all going to be tough games," he said. "But we're always very wary of team who have a great history in the European Cup.
"We know what we're up against and we know it's going to be difficult - it always is against top German sides."