Ole Gunnar Solskjaer admits Manchester United supporters had every right to feel "disillusioned" after anti-Glazer chants were heard at Old Trafford.
The Red Devils were beaten 2-0 by Burnley at the Theatre of Dreams last night, with Chris Wood and Jay Rodriguez both getting their names on the scoresheet.
It was the first time that Burnley have won at Old Trafford since 1962.
The vast majority of United supporters were on their feet when chants of "stand up if you hate Glazers" echoed around Old Trafford, where executive vice-chairman Ed Woodward also copped flak.
Large amounts of empty seats could be seen around the stadium before the final whistle.
Asked how United convince disillusioned fans that things are going to change when there is no evidence of progress on the pitch, United boss Solskjaer said: "Today there wasn't in the end, because at the end you do feel disillusioned, as you say, because maybe they do.
"But for us we've just got to stick to our values, stick to our beliefs and knowing that there's no use feeling sorry for yourself.
"You've got to go out there with the same commitment tomorrow, the day after, get ready for Sunday.
"We know we've had X amount of games since the beginning of December and they are very stretched."
The final whistle was met by boos around Old Trafford, but the Burnley fans in attendance could not have been happier with their side's first win at United since 1962.
"I think we've worked very hard over the years to get some big nights, big moments on behalf of the club side of things and for the players," manager Sean Dyche said. "Some real historical moments.
"But I think there's still something really special about this club and about winning here, and for our fans of course as well.
"Close the last couple of seasons with 2-2s and they've come back.
"Tonight it didn't feel like that.
"Once we got our noses in front, we handled the game, which is not easy here, they've only lost once here this season.
"And as the game wore down, I just thought we could see it through. I didn't have that same feeling I've had in the past and we did see it through."