I can't remember off the top of my head the exact error message, I will post it tonite when I get home, I am hoping you guys can lead to the right direction. I have a brand new computer with windows 7 64bit, i7 core cpu.ASUS G51J. I downloaded RU5 from ACERT(DoD), they may have a corrupted version because the error message does say it could be corrupted. I have downloaded it 2 times to be sure I got all of it. I even tried running lusetup, reboot and setup again that did not work, from the notes on this version it does say it works with windows 7 tho.