Help! Operating system reinstallation

Hello

My computer is a HP Pavilion dv4-2045dx. I had to have my hard drive replaced. I have the recovery system for windows 7 64 bit DVD. I tried to reinstall, but for some reason it wasn't and the computer gives me a message saying that the installation only has not worked and re - install. I put the re-installation of discs in and it does not work. I don't know what to do. Help, please!

Try typing away at the F11 key immediately after turning the power on to see if the recovery partition can reinstall now (without disks):

http://support.HP.com/US-en/document/c01612373=

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