How can I boot my e-machine T4150?

Before my son gave me his old e-machine, he tried to erase all of his personal files. In doing so, he erase everything on the hard drive. When I turn on the computer all I get is a black screen with the following error message, Disk Boot Failure, insert system disk and press enter. According to my son the e-machine came with the Restore disks only. S/No. QVC1A 005 61414 and Part No.507766