hello, i am new to digit. ma friend suggested me this forum . hope u help me out ,vice versa. i have a pentium dual core processor, intel 945 mobo, 160 sata hddsk.i have been using windows xp for quite a long time. but few weeks back , i started getting problem. windows files getting corrupt. so i decided to install windows 7. i formatted it, but during installation in d expanding files stage, it got stuck at 17 %. it gave me dis error 0x80070570. i tried installing but in vain. d very next day, while i was starting ma pc, it got stuck on d first page, which shows d config of d pc. it didnt move further. it showed press d delete button to go into setup. i pressed , but in vain.d dvd rom didnt show.but when i removed d hardisk ,it started booting.even ubuntu worked with live cd mode. help what to do.