why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
/ Y; O7 \2 f2 T! u* Cthey say the "red cross" mean no space on your computer
+ Z2 Y' R3 L* W: E" n8 eTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 0 u3 H' _7 ^6 _7 i3 T
but my harddisk is not full...how come it still doing that