HELP

My computer was acting slow so i decided why not reset it to make it go faster i didnt care since i didnt have important flies on it, i started to reset it and it said it couldnt be reset for some reason, then i tried to reset it again nd it didnt work i decided to give up at that point, i shut my computer down and turned it back on and the dell logo showed up but that was all it didnt go to windows or anything, i shut it down again and same thing it showed the dell then went to a blank screen sometimes a dell suport thing would show up but that didnt help much at all, please help!

Ps: i forgot to mention earlier but i was getting some wierd error message plus it was being very slow.