New Hard Drive with No Boot Deteted

[Carballoca]

I have Dell Dimension E521 I replaced the hard drive and now I'm getting these messages NO BOOT DEVICE DETECTED and Setup cannot find editor licensing agreement EULA

What do I do now..?

 

[ksiemb]

I have Dell Dimension E521 I replaced the hard drive and now I'm getting these messages NO BOOT DEVICE DETECTED and Setup cannot find editor licensing agreement EULA

What do I do now..?

http://support.microsoft.com/kb/326673