That could be a blown OS or bad HDD, etc.
Did you try one of those live CDs? My link is outdated but it's old advice. You can try a newer version of same.
http://tips.oncomputers.info/archives2004/0401/2004-Jan-11.htm
Bob
My dell laptop is not starting up after dell logo display and it's showing only blank screen and stuck there.
laptop is Dell inspiron 3520
plz reply anybody....

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