Ok guys my first post. I do not have computer savy, but I really need help. This was my son's computer. He died last year from complications of cystic fibrosis. He built this computer, and he was a big online gamer. my problem is I can't get past the blue screen NTLDR missing press ctrl alt del to restart, When i do it just brings me back to the same screen. It won't let me go to safe mode (like I would know what to do when I got there ) the only F key that would work was F4 contineously being pecked, windows finally loaded. but everytime i reboot the computer the NTLDR... screen comes up so the I reboot using the F4 key. please help.